  

<table class="width100" style="width:100%;" data-cellspacing="1">
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<col style="width: 16%" />
<col style="width: 16%" />
<col style="width: 16%" />
<col style="width: 16%" />
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<tbody>
<tr class="odd">
<td colspan="6" class="form-title"><div class="center">
ETSI's Bug Tracker - Part 01: TTCN-3 Core Language
</div></td>
</tr>
<tr class="even">
<td colspan="6" class="form-title">View Issue Details</td>
</tr>
<tr class="odd">
<td colspan="6" class="print-spacer"><hr /></td>
</tr>
<tr class="even 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="odd print">
<td class="print">0007288</td>
<td class="print">Part 01: TTCN-3 Core Language</td>
<td class="print">Clarification</td>
<td class="print">public</td>
<td class="print">06-01-2016 11:49</td>
<td class="print">12-12-2016 11:06</td>
</tr>
<tr class="even">
<td colspan="6" class="print-spacer"><hr /></td>
</tr>
<tr class="odd print">
<td class="print-category">Reporter</td>
<td class="print">Tomas Urban</td>
<td colspan="4" class="print"> </td>
</tr>
<tr class="even print">
<td class="print-category">Assigned To</td>
<td class="print">Gyorgy Rethy</td>
<td colspan="4" class="print"> </td>
</tr>
<tr class="odd 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="even print">
<td class="print-category">Status</td>
<td class="print">closed</td>
<td class="print-category">Resolution</td>
<td class="print">fixed</td>
<td colspan="2" class="print"> </td>
</tr>
<tr class="odd 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="even print">
<td class="print-category">Product Version</td>
<td class="print">v4.7.1 (published 2015-06)</td>
<td colspan="4" class="print"> </td>
</tr>
<tr class="odd">
<td class="print-category">Target Version</td>
<td class="print">v4.9.1 (published 2017-05)</td>
<td class="print-category">Fixed in Version</td>
<td class="print">v4.9.1 (published 2017-05)</td>
<td colspan="2" class="print"> </td>
</tr>
<tr class="even print">
<td class="print-category">Clause Reference(s)</td>
<td colspan="4" class="print">6.2.3, 27.7, 3.1</td>
<td></td>
</tr>
<tr class="odd print">
<td class="print-category">Source (company - Author)</td>
<td colspan="4" class="print">Elvior</td>
<td></td>
</tr>
<tr class="even">
<td colspan="6" class="print-spacer"><hr /></td>
</tr>
<tr class="odd print">
<td class="print-category">Summary</td>
<td colspan="5" class="print">0007288: Not described use cases for
optional attribute</td>
</tr>
<tr class="even print">
<td class="print-category">Description</td>
<td colspan="5" class="print">The current rules for the optional
attribute describe very well the situation when the RHS of an assignment
contains a value or field list (6.2.3).<br />
<br />
However, other assignments of a record (or set) value are
possible:<br />
a) a direct assignment (either from a function or a different record),
e.g.:<br />
type record R {<br />
  integer field1 optional,<br />
  integer field2 optional<br />
}<br />
...<br />
var R v_var1 := { 1, - };<br />
var R v_var2 with { optional "implicit omit" };<br />
v_var2 := v_var1; // will we get { 1, omit } or { 1, - }?<br />
<br />
b) only individual fields are assigned<br />
var R v_var3 with { optional "implicit omit" };<br />
// what is the value now? uninitialized or {omit, omit}?<br />
v_var3.field1 := 1; // is the value of v_var3 { 1, omit } or { 1, -
}?<br />
<br />
The specification doesn't provide any examples on how to handle these
situations. The rules of 27.7 seem to point in the direction of
inserting the omit symbol, but e.g. the note 2 in the section on
partially defined values in 3.1 mentions the list syntax
specifically.<br />
<br />
Proposal: Add rules/notes/examples describing TTCN-3 behaviour in the
above mentioned cases.<br />
</td>
</tr>
<tr class="odd print">
<td class="print-category">Steps To Reproduce</td>
<td colspan="5" class="print"></td>
</tr>
<tr class="even print">
<td class="print-category">Additional Information</td>
<td colspan="5" class="print"></td>
</tr>
<tr class="odd print">
<td class="print-category">Tags</td>
<td colspan="5" class="print">No tags attached.</td>
</tr>
<tr class="even print">
<td class="print-category">Relationships</td>
<td colspan="5" class="print"><table data-border="0" width="100%"
data-cellpadding="0" data-cellspacing="1">
<tbody>
<tr class="odd">
<td class="print"><span class="nowrap">related to</span> </td>
<td class="print">0007453</td>
<td class="print">closed </td>
<td class="print"><span class="nowrap"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy
Rethy</a></span> </td>
<td class="print">Restriction on use of optional attibutes in
variables </td>
</tr>
<tr class="even">
<td class="print"><span class="nowrap">related to</span> </td>
<td class="print">0007473</td>
<td class="print">closed </td>
<td class="print"><span class="nowrap"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy
Rethy</a></span> </td>
<td class="print">Chapter 6.2.1 inconsitencies in optionial attribute
"explicit omit" </td>
</tr>
</tbody>
</table></td>
</tr>
<tr class="odd print">
<td class="print-category">Attached Files</td>
<td colspan="5" class="print"><img
src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif"
alt="docx" /> CR_7288.docx (20,572) <span class="italic">19-07-2016
09:58</span><br />
http://oldforge.etsi.org/mantis/file_download.php?file_id=3415&amp;type=bug<br />
<img src="http://oldforge.etsi.org/mantis/images/fileicons/doc.gif"
alt="docx" /> CR7288_v2.docx (159,145) <span class="italic">20-07-2016
09:10</span><br />
http://oldforge.etsi.org/mantis/file_download.php?file_id=3421&amp;type=bug</td>
</tr>
<tr class="even">
<td colspan="6" class="print-spacer"><hr /></td>
</tr>
<tr class="odd">
<td class="form-title">Issue History</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even 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>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">06-01-2016 11:49</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=787">Tomas
Urban</a></td>
<td class="print">New Issue</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">07-01-2016 08:50</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; v4.6.2 (interim 2014)</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">18-07-2016 11:13</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>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">18-07-2016 11:13</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>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">18-07-2016 11:15</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens
Grabowski</a></td>
<td class="print">Note Added: 0013976</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">18-07-2016 15:00</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: 0013982</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">18-07-2016 15:31</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f
Szabados</a></td>
<td class="print">Assigned To</td>
<td class="print">KristÃ³f Szabados =&gt; Tomas Urban</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">18-07-2016 15:59</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas
Urban</a></td>
<td class="print">Relationship added</td>
<td class="print">related to 0007453</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">18-07-2016 16:05</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: 0013983</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">18-07-2016 16:05</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; KristÃ³f Szabados</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">19-07-2016 09:58</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_7288.docx</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">19-07-2016 09:59</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>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">19-07-2016 10:05</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: 0013985</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">19-07-2016 10:05</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">assigned =&gt; feedback</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">20-07-2016 09:10</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: CR7288_v2.docx</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">20-07-2016 13:52</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=131">Thilo
Lauer</a></td>
<td class="print">Note Added: 0014008</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">21-07-2016 08:12</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: 0014017</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">21-07-2016 08:19</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: 0014018</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">21-07-2016 08:19</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; KristÃ³f Szabados</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">21-07-2016 08:19</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">feedback =&gt; assigned</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">22-07-2016 13:50</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: 0014039</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">22-07-2016 13:50</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">assigned =&gt; resolved</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">22-07-2016 13:50</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f
Szabados</a></td>
<td class="print">Resolution</td>
<td class="print">open =&gt; fixed</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">22-07-2016 13:50</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; Gyorgy Rethy</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">17-08-2016 05:26</td>
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f
Szabados</a></td>
<td class="print">Relationship added</td>
<td class="print">related to 0007473</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">17-08-2016 10:52</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">resolved =&gt; feedback</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">17-08-2016 10:52</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">Resolution</td>
<td class="print">fixed =&gt; reopened</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">17-08-2016 10:52</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">Target Version</td>
<td class="print">v4.6.2 (interim 2014) =&gt; v4.9.1 (published
2017-05)</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">17-08-2016 10:54</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">feedback =&gt; resolved</td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">17-08-2016 10:54</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">Resolution</td>
<td class="print">reopened =&gt; fixed</td>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">12-12-2016 11:06</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: 0014378</td>
<td class="print"></td>
<td></td>
<td></td>
</tr>
<tr class="even print">
<td class="print">12-12-2016 11:06</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>
<td></td>
<td></td>
</tr>
<tr class="odd print">
<td class="print">12-12-2016 11:06</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 (published 2017-05)</td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

  

<table class="width100" data-cellspacing="1">
<colgroup>
<col style="width: 50%" />
<col style="width: 50%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="2" class="form-title">Notes</td>
</tr>
<tr class="even">
<td colspan="2" class="print-spacer"><hr /></td>
</tr>
<tr class="odd">
<td class="nopad" data-valign="top" width="20%"><table class="hide"
data-cellspacing="1">
<tbody>
<tr class="odd">
<td class="print">(0013976)</td>
</tr>
<tr class="even">
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=82">Jens
Grabowski</a>   </td>
</tr>
<tr class="odd">
<td class="print">18-07-2016 11:15   </td>
</tr>
</tbody>
</table></td>
<td class="nopad" data-valign="top" width="85%"><table class="hide"
data-cellspacing="1">
<colgroup>
<col style="width: 100%" />
</colgroup>
<tbody>
<tr class="odd">
<td class="print">Majority for<br />
<br />
a) v_var2 := v_var1; // will we get { 1, omit }<br />
<br />
b) v_var3.field1 := 1; // is the value of v_var3 { 1, omit }</td>
</tr>
</tbody>
</table></td>
</tr>
<tr class="even">
<td colspan="2" class="print-spacer"><hr /></td>
</tr>
<tr class="odd">
<td class="nopad" data-valign="top" width="20%"><table class="hide"
data-cellspacing="1">
<tbody>
<tr class="odd">
<td class="print">(0013982)</td>
</tr>
<tr class="even">
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f
Szabados</a>   </td>
</tr>
<tr class="odd">
<td class="print">18-07-2016 15:00   </td>
</tr>
</tbody>
</table></td>
<td class="nopad" data-valign="top" width="85%"><table class="hide"
data-cellspacing="1">
<colgroup>
<col style="width: 100%" />
</colgroup>
<tbody>
<tr class="odd">
<td class="print">As far as I understand this usage against the
standard.<br />
In version 4.8.1 (the latest I can reach) optional attributes can not be
associated to variables.<br />
<br />
27.7 starts with<br />
"The optional attribute can be used to indicate that optional fields of
constants, module parameters or templates of record and set types are
implicitly set to omit."<br />
<br />
restriction "a" in this section explicitly states that variables can not
be associated with optional attributes:<br />
"Data type, port type, procedure signature and variable definitions and
import statements shall not have an optional attribute associated to
them directly"</td>
</tr>
</tbody>
</table></td>
</tr>
<tr class="even">
<td colspan="2" class="print-spacer"><hr /></td>
</tr>
<tr class="odd">
<td class="nopad" data-valign="top" width="20%"><table class="hide"
data-cellspacing="1">
<tbody>
<tr class="odd">
<td class="print">(0013983)</td>
</tr>
<tr class="even">
<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas
Urban</a>   </td>
</tr>
<tr class="odd">
<td class="print">18-07-2016 16:05   </td>
</tr>
</tbody>
</table></td>
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<td class="print">I created a new CR regarding this issue (<a
href="/mantis/view.php?id=7453" class="resolved"
title="[closed] Restriction on use of optional attibutes in variables">0007453</a>).
Regardless of the resolution of this CR, the first issue has to be still
addressed as constants, templates and module parameters can be
initialized without using value list or assignment notation.</td>
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<td class="print">(0013985)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f
Szabados</a>   </td>
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<td class="print">19-07-2016 10:05   </td>
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<td class="print">after separating the issue of variables into a new
CR<br />
"v_var2 := v_var1; // will we get { 1, omit }" sounds good
(constants/templates/moduleparameters)</td>
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<td class="print">(0014008)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=131">Thilo
Lauer</a>   </td>
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<td class="print">20-07-2016 13:52   </td>
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<td class="print">It seems that there is a general misunderstanding of
(-) and omit in this CR:<br />
(-) in current TTCN-3 is a "skip this assignment" symbol and no(!) value
that can be stored e.g. in a variable!<br />
<br />
omit is a special value that can be stored e.g. in a template
variable!<br />
<br />
Therefore a variable can never(!) have a "value" { 1, - } !!!<br />
<br />
The variable "value" here can only be { 1, omit } or { 1,
&lt;unbound&gt; }<br />
or it can have a template "value" or a value "value":<br />
{ 1, ? } or { 1, 99 }</td>
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<td class="print">(0014017)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas
Urban</a>   </td>
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<td class="print">21-07-2016 08:12   </td>
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<td class="print">The skip symbol is used as &lt;unbound&gt; or
UNINITIALIZED in this context. It is just shorter to write is this
way.</td>
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<td class="print">(0014018)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=659">Tomas
Urban</a>   </td>
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<td class="print">21-07-2016 08:19   </td>
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<td class="print">The last proposal solves the first issue. The solution
for the second issue is dependent on the resolution of <a
href="/mantis/view.php?id=7453" class="resolved"
title="[closed] Restriction on use of optional attibutes in variables">0007453</a>.
If it allows to use optional attributes for variables, the proposal has
to be extended. Otherwise, you can mark te CR as resolved.</td>
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<td class="print">(0014039)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=361">KristÃ³f
Szabados</a>   </td>
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<td class="print">22-07-2016 13:50   </td>
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<td class="print">The first issue was corrected.<br />
The second should be considered when CR 7453 is handled.</td>
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<td class="print">(0014378)</td>
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<td class="print"><a
href="http://oldforge.etsi.org/mantis/view_user_page.php?id=127">Gyorgy
Rethy</a>   </td>
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<td class="print">12-12-2016 11:06   </td>
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<td class="print">Added to V4.8.2</td>
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