attempt to use CI branch env variable

to avoid errors like https://gitlab.emse.fr/saref/repo/saref-core/-/jobs/6593

src/main/java/fr/emse/gitlab/saref/managers/RepositoryFactory.java

@@ -117,11 +117,16 @@ public class RepositoryFactory extends SAREFErrorLogger {
 				errorLogger.warn(msg);
 			}
 			String originalBranch = git.getRepository().getBranch();
-			
-			if(System.getProperty("CI_COMMIT_REF_NAME") != null) {
+
+			System.out.println("CI_COMMIT_REF_NAME is set to " + System.getenv("CI_COMMIT_REF_NAME"));
+
+			System.out.println("CI_COMMIT_REF_NAME is set to " + System.getProperty("CI_COMMIT_REF_NAME"));
+
+			if(isTarget && System.getProperty("CI_COMMIT_REF_NAME") != null) {
 				originalBranch = System.getProperty("CI_COMMIT_REF_NAME");
 				System.out.println("CI_COMMIT_REF_NAME is set to " + originalBranch);
 			}
+			
 			final SAREFVersionName originalVersion;
 			Pattern pattern = Pattern.compile(REGEX_VERSION_BRANCH);
 			Matcher m = pattern.matcher(originalBranch);