When adding a new form or sense and hovering the question mark icon next to "save | cancel", no help tooltip appears, but an exception in the JavaScript console. The reason is that the two jquery.wikibase.lexemeformview.js and jquery.wikibase.senseview.js do not specify a default helpMessage in their default options.
This can be fixed either way:
- Add helpMessage options to the two views. This implies actually specifying what these messages should say.
- Make these messages optional.
I suggest the later. Patch-For-Review: