Updated mediawiki/extensions/Wikidata
Project: mediawiki/extensions/Wikibase  5f276322fa776b52e4497d5f9396c0690fa8fd0f

Fix LabelDescriptionUniquenessValidator not working

This fixes the API but not [[Special:SpecialNewItem]].
You can still create label + description duplications
with the special page.

Change-Id: I4c9f7d1d8b29b50ccf5b9b75c10f45f58af63e25