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<br /><table class="width100" cellspacing="1"><tr><td class="form-title" colspan="6"><div class="center">ETSI's Bug Tracker - Part 11: Using JSON with TTCN-3</div></td></tr><tr><td class="form-title" colspan="6">View Issue Details</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print-category"><td class="print" width="16%">ID</td><td class="print" width="16%">Project</td><td class="print" width="16%">Category</td><td class="print" width="16%">View Status</td><td class="print" width="16%">Date Submitted</td><td class="print" width="16%">Last Update</td></tr><tr class="print"><td class="print">0007968</td><td class="print">Part 11: Using JSON with TTCN-3</td><td class="print">[TTCN-3 Change Requests] Clarification</td><td class="print">public</td><td class="print">23-07-2020 08:51</td><td class="print">17-12-2020 15:19</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print"><td class="print-category">Reporter</td><td class="print">KristÃ³f Szabados</td><td class="print" colspan="4">&#160;</td></tr><tr class="print"><td class="print-category">Assigned To</td><td class="print">Gyorgy Rethy</td><td class="print" colspan="4">&#160;</td></tr><tr class="print"><td class="print-category">Priority</td><td class="print">normal</td><td class="print-category">Severity</td><td class="print">minor</td><td class="print-category">Reproducibility</td><td class="print">have not tried</td></tr><tr class="print"><td class="print-category">Status</td><td class="print">closed</td><td class="print-category">Resolution</td><td class="print">fixed</td><td class="print" colspan="2">&#160;</td></tr><tr class="print"><td class="print-category">Platform</td><td class="print"></td><td class="print-category">OS</td><td class="print"></td><td class="print-category">OS Version</td><td class="print"></td></tr><tr class="print"><td class="print-category">Product Version</td><td class="print">V4.8.1 (published 2020-05)</td><td class="print" colspan="4">&#160;</td></tr><tr><td class="print-category">Target Version</td><td class="print">V4.9.1 (ongoing)</td><td class="print-category">Fixed in Version</td><td class="print">V4.9.1 (ongoing)</td><td class="print" colspan="2">&#160;</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr class="print"><td class="print-category">Summary</td><td class="print" colspan="5">0007968: unclear description on what can be inside of a default</td></tr><tr class="print"><td class="print-category">Description</td><td class="print" colspan="5">Section B.3.9 &quot;Default&quot; describes the acceptable &lt;value&gt; part as such<br />
&quot;The &lt;value&gt; shall contain a valid TTCN-3 value of the field's type, but string types do not need the starting and ending quotes. All JSON escaped characters can be used, plus the escape sequence '\)' will add a ')' (right round bracket) character.&quot;<br />
<br />
However as the only example is for charstrings, this leaves some questions unanswered.<br />
<br />
For example if it is set for a universal charstring field like this:<br />
type record RecDef {<br />
&#160;&#160;universal charstring ucs<br />
} with {<br />
&#160;&#160;variant(ucs) &quot;JSON:default(&lt;value&gt;)&quot;;<br />
}<br />
<br />
is <br />
char(1,2,3,4) &amp; char(5,6,7,8) &amp; &quot;?&quot; <br />
Acceptable for &lt;value&gt;?<br />
<br />
The text also sais that the ending quotes are not needed.<br />
Which could indicate that this would also be ok<br />
char(1,2,3,4) &amp; char(5,6,7,8) &amp; &quot;?<br />
An expression not acceptable anywhere else.<br />
</td></tr><tr class="print"><td class="print-category">Steps To Reproduce</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Additional Information</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Tags</td><td class="print" colspan="5">No tags attached.</td></tr><tr class="print"><td class="print-category">Relationships</td><td class="print" colspan="5"></td></tr><tr class="print"><td class="print-category">Attached Files</td><td class="print" colspan="5"><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="docx" />&#160;CR_7968.docx (147,206) <span class="italic">10-08-2020 16:34</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=3901&amp;type=bug<br /><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="docx" />&#160;CR_7968_v2.docx (148,334) <span class="italic">10-08-2020 17:51</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=3902&amp;type=bug<br /><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="docx" />&#160;CR_7968_v3.docx (148,304) <span class="italic">11-08-2020 10:48</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=3906&amp;type=bug<br /><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="docx" />&#160;CR_7968_v4.docx (148,961) <span class="italic">11-08-2020 16:01</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=3914&amp;type=bug<br /><img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif" alt="docx" />&#160;CR_7968_v5.docx (149,860) <span class="italic">12-08-2020 14:16</span><br />http://oldforge.etsi.org/mantis/file_download.php?file_id=3925&amp;type=bug</td></tr><tr><td class="print-spacer" colspan="6"><hr size="1" /></td></tr><tr><td class="form-title">Issue History</td></tr><tr class="print-category"><td class="row-category-history">Date Modified</td><td class="row-category-history">Username</td><td class="row-category-history">Field</td><td class="row-category-history">Change</td></tr><tr class="print"><td class="print">23-07-2020 08:51</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">New Issue</td><td class="print"></td></tr><tr class="print"><td class="print">23-07-2020 09:13</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015666</td><td class="print"></td></tr><tr class="print"><td class="print">25-07-2020 17:23</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015668</td><td class="print"></td></tr><tr class="print"><td class="print">25-07-2020 17:31</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015669</td><td class="print"></td></tr><tr class="print"><td class="print">10-08-2020 10:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Assigned To</td><td class="print"> =&gt; KristÃ³f Szabados</td></tr><tr class="print"><td class="print">10-08-2020 10:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens Grabowski</a></td><td class="print">Status</td><td class="print">new =&gt; assigned</td></tr><tr class="print"><td class="print">10-08-2020 16:34</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">File Added: CR_7968.docx</td><td class="print"></td></tr><tr class="print"><td class="print">10-08-2020 16:37</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015672</td><td class="print"></td></tr><tr class="print"><td class="print">10-08-2020 17:51</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">File Added: CR_7968_v2.docx</td><td class="print"></td></tr><tr class="print"><td class="print">10-08-2020 17:52</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015673</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 10:12</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015677</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 10:12</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Assigned To</td><td class="print">KristÃ³f Szabados =&gt; Jacob Wieland - Spirent</td></tr><tr class="print"><td class="print">11-08-2020 10:13</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Status</td><td class="print">assigned =&gt; confirmed</td></tr><tr class="print"><td class="print">11-08-2020 10:33</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Note Added: 0015678</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 10:34</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Assigned To</td><td class="print">Jacob Wieland - Spirent =&gt; KristÃ³f Szabados</td></tr><tr class="print"><td class="print">11-08-2020 10:34</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Status</td><td class="print">confirmed =&gt; assigned</td></tr><tr class="print"><td class="print">11-08-2020 10:48</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">File Added: CR_7968_v3.docx</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 10:49</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015680</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 16:01</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">File Added: CR_7968_v4.docx</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 16:01</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015701</td><td class="print"></td></tr><tr class="print"><td class="print">11-08-2020 16:02</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Assigned To</td><td class="print">KristÃ³f Szabados =&gt; Jacob Wieland - Spirent</td></tr><tr class="print"><td class="print">12-08-2020 13:04</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Status</td><td class="print">assigned =&gt; confirmed</td></tr><tr class="print"><td class="print">12-08-2020 14:16</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">File Added: CR_7968_v5.docx</td><td class="print"></td></tr><tr class="print"><td class="print">12-08-2020 14:18</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Note Added: 0015711</td><td class="print"></td></tr><tr class="print"><td class="print">12-08-2020 14:18</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Assigned To</td><td class="print">Jacob Wieland - Spirent =&gt; KristÃ³f Szabados</td></tr><tr class="print"><td class="print">12-08-2020 14:18</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Status</td><td class="print">confirmed =&gt; assigned</td></tr><tr class="print"><td class="print">12-08-2020 14:18</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a></td><td class="print">Status</td><td class="print">assigned =&gt; confirmed</td></tr><tr class="print"><td class="print">12-08-2020 17:30</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Note Added: 0015717</td><td class="print"></td></tr><tr class="print"><td class="print">12-08-2020 17:30</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Assigned To</td><td class="print">KristÃ³f Szabados =&gt; Tomas Urban</td></tr><tr class="print"><td class="print">12-08-2020 17:30</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a></td><td class="print">Status</td><td class="print">confirmed =&gt; assigned</td></tr><tr class="print"><td class="print">13-08-2020 11:58</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas Urban</a></td><td class="print">Note Added: 0015727</td><td class="print"></td></tr><tr class="print"><td class="print">13-08-2020 11:58</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas Urban</a></td><td class="print">Status</td><td class="print">assigned =&gt; resolved</td></tr><tr class="print"><td class="print">13-08-2020 11:58</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas Urban</a></td><td class="print">Resolution</td><td class="print">open =&gt; fixed</td></tr><tr class="print"><td class="print">13-08-2020 11:58</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas Urban</a></td><td class="print">Assigned To</td><td class="print">Tomas Urban =&gt; Gyorgy Rethy</td></tr><tr class="print"><td class="print">17-12-2020 15:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Note Added: 0015885</td><td class="print"></td></tr><tr class="print"><td class="print">17-12-2020 15:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Status</td><td class="print">resolved =&gt; closed</td></tr><tr class="print"><td class="print">17-12-2020 15:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Product Version</td><td class="print"> =&gt; V4.8.1 (published 2020-05)</td></tr><tr class="print"><td class="print">17-12-2020 15:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Fixed in Version</td><td class="print"> =&gt; V4.9.1 (ongoing)</td></tr><tr class="print"><td class="print">17-12-2020 15:19</td><td class="print"><a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a></td><td class="print">Target Version</td><td class="print"> =&gt; V4.9.1 (ongoing)</td></tr></table>
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				(0015666)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				23-07-2020 09:13&#160;&#160;&#160;
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				Also can this &lt;value&gt; be a value of a structured type?			</td>
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				(0015668)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				25-07-2020 17:23&#160;&#160;&#160;
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				the part of &quot;string types do not need the starting and ending quotes&quot; creates a problem for error reporting.<br />
<br />
In this example:<br />
type record RecDef {<br />
&#160;&#160;integer ucs<br />
} with {<br />
&#160;&#160;variant(ucs) &quot;JSON:default(1.2.3)&quot;;<br />
}<br />
<br />
Should the tools report an error for the syntactically incorrect float value, or should they warn the user that a charstring value can not be assigned to an integer field.<br />
According to the current text of the standard, during lexical anaysis if the tools find a syntactic error in the value ... they should assume that it is a charstring value without quotes. Which might not be the expected behaviour from the user's point of view.<br />
<br />
This logic can be very limiting for tools and result in very bad service for the users in more complex cases.<br />
for example:<br />
type record RecDef {<br />
&#160;&#160;SomeRecordType field<br />
} with {<br />
&#160;&#160;variant(field) &quot;JSON:default({x1:=1,x2:=1.2,x3:=xx2,x4=omit})&quot;;<br />
}<br />
<br />
In this case should the tools report to the user that there is a syntax error just after x4, or should they report that a charstring value can not be assigned to a field of SomeRecordType.<br />
Right now the standard seems to suggest the second option ... but from a users point of view the first one would be much more useful.			</td>
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				(0015669)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				25-07-2020 17:31&#160;&#160;&#160;
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				Please note, that the option to leave out starting and ending quotes is also bad for parsers, as it creates ambiguous situations.<br />
<br />
For example:<br />
In this example:<br />
type record RecDef {<br />
&#160;&#160;charstring field1<br />
&#160;&#160;charstring field2<br />
} with {<br />
&#160;&#160;variant(field1) &quot;JSON:default( )&quot;; variant(field2) &quot;JSON:default( )&quot;;<br />
}<br />
<br />
Are we here setting the &quot; &quot; (single space) value as default for both fields?<br />
Or the &quot; )\&quot;; variant(field2) \&quot;JSON:default( &quot; to field1 with improperly un-escaped quotes (which happens in practice)?			</td>
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				(0015672)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				10-08-2020 16:37&#160;&#160;&#160;
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				Added first proposal version.<br />
- removed the option to leave out string opening-closing characters otherwise required in other places in TTCN-3 (&quot;, 'O ...etc).<br />
- added example for a default with a record value.<br />
- added example for a syntactically erroneous default value (to show that it is not to be recognized as a correct charstring			</td>
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				(0015673)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				10-08-2020 17:52&#160;&#160;&#160;
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				_v2 also allows referencing const values, as long as the referenced values are statically bound, i.e. known in compile time.<br />
+ example.			</td>
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				(0015677)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				11-08-2020 10:12&#160;&#160;&#160;
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				please review			</td>
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				(0015678)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a>&#160;&#160;&#160;
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				11-08-2020 10:33&#160;&#160;&#160;
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				I don't think allowing sub-expressions to be constant references is really necessary. It makes things complicated and if they user wants that, they can simply define the whole value as a constant and reference that instead. That way, the normal type and context checking mechanisms are used and do not have to be empployed recursively on the codec generator level.<br />
<br />
Also, the quoting of strings seems to be wrong. You are often using triple quotes where only double quotes should be.			</td>
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				(0015680)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				11-08-2020 10:49&#160;&#160;&#160;
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				fixed the triple quote issue.<br />
please check.			</td>
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				(0015701)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				11-08-2020 16:01&#160;&#160;&#160;
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				modified so that references are only allowed on top level.<br />
Please review.			</td>
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				(0015711)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=508">Jacob Wieland - Spirent</a>&#160;&#160;&#160;
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				12-08-2020 14:18&#160;&#160;&#160;
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				Changed the wording slightly and fixed the examples. 'from' is a keyword so I replaced it with origin, also fixed some syntactical errors. Please review			</td>
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				(0015717)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f Szabados</a>&#160;&#160;&#160;
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				12-08-2020 17:30&#160;&#160;&#160;
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				looks good for me.<br />
Tomas should also take a look.			</td>
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				(0015727)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas Urban</a>&#160;&#160;&#160;
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				13-08-2020 11:58&#160;&#160;&#160;
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				The proposed change resolves the issue described in the CR and it is ready to be added to the next version of the specification.			</td>
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				(0015885)
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				<a href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy Rethy</a>&#160;&#160;&#160;
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				17-12-2020 15:19&#160;&#160;&#160;
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				Implemented in draft 4.8.2			</td>
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