Found this with the 'about_privacy_policy' string; cs and gl versions were added with %-encoding for some chars in the URL.
This triggered a compilation error in resources:
error: Multiple substitutions specified in non-positional format; did you mean to add the formatted="false" attribute?
Worked around here by simply replacing the % codes with their original chars, since that works for them:
[2:07pm] wikipedia-github: android-commons/master a28fc9a Brion Vibber: Work around compilation failure with % encoding in strings
with the same fixes copied over to TWN and a qqq entry added describing the issue.
Proper fix for this is to add formatted="no" attribute to the <string> entry. So we'd maybe need to set it on the original and make sure it gets passed through to the translated outputs....?
Alternate fix is to use %%... or perhaps to redo it as a formatted string and figure out how to get those to round-trip through TWN.