Problem:
When trying to change the language of an existing Gloss the edit summary is broken, the diff is empty and the intended change is not made.
Example:
On https://wikidata.beta.wmflabs.org/w/index.php?title=Lexeme:L1&oldid=1075832 I tried to change the Gloss language from German to Norwegian-Nynorsk (nn). The resulting diff is: https://wikidata.beta.wmflabs.org/w/index.php?title=Lexeme:L1&diff=1087616&oldid=1075832
Acceptance criteria:
- The change is made
- The diff shows the change
- The edit summary is not broken