merge_canonical_changes.py adds German translations to not-yet-published languages
Spotted by sajolida, it seems the script that refreshes the still not published translations is adding German translations to the languages we have in Weblate but we don't yet have on the main repository. This problem does not affect Spanish, German, Persian, French, Italian or Portuguese.
Examples are:
wiki/src/contribute.*.po / https://translate.tails.boum.org/translate/tails/contribute/pl/?checksum=f274a1056febc396#translations
wiki/src/doc/first_steps/bug_reporting.*.po / https://translate.tails.boum.org/translate/tails/bug_reporting/tr/?checksum=649206e70a2f2c59#translations - https://gitlab.tails.boum.org/tails/tails/-/blame/master/wiki/src/doc/first_steps/bug_reporting.ca.po#L404
A sample commit is 41bf7a19 (look for 'Starten von DVD mit einem Mac' )
I am not sure how merge_canonical_changes.py works, but it seems sometimes the msgstr is being copied from German along the msgid.