From r103763, comment #c30191:
If a de message was in wmf-branch and isn't in trunk (and developers expect it to fall back to en), it cannot be updated by LU.
Some ways to fix:
- Iterate over all keys in English where English text is not changed when updating (= building cache), then calculate (resolve fallback now) its message text in every language and store it in cache. When recaching the message, simply merging cached data into main data.
- or, include English in l10ncache.
Version: unspecified
Severity: normal