The toolbar doesn't change, instead it still says "edit" while everything else seems to work. Also using the ESC key to cancel edit mode does still work. Clicking "edit" again while still in edit mode has no effect.
The reason for this is that when clicking "edit", an error is thrown in jQuery.wikibase.snakview.prototype.isInitialSnak (last line of the function), "can not call mothod 'equals' of null".
Version: unspecified
Severity: normal