gitsquash - test weblate mr #13832

https://github.com/WeblateOrg/weblate/issues/13828 got closed as the primitive testcase passes.

After more discussion upstream thinks, that the problem is their merge_driver for po files. There theses is that without this merge_driver our problem would be solved. The created a patch https://github.com/WeblateOrg/weblate/pull/13832 to fix this.

We should test and maybe think about to implement it.

• test (be nice with upstream):
  • patch merge_driver weblate/examples/git-merge-gettext-po (see /app/home/.gitconfig for complete path)
  • run gitsquash tests with env added WEBLATE_MERGE_SKIP=1 hopefully gitsquash does not fail anymore for any testcase. AKA one broken testcase testGitSquashFailing with "Exception not raised".
• after testing think about if it is worth do a permanent backport of this patch or if we just wait till we update Weblate.