Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  c223b019710fa5a6ca68ba6205fb37c940f0317e

Fix fatal error in Wikibase.hooks.php

@todo use EntityRevision or something instead here.

Change-Id: Ieec6829da3a53bfcde3319fd6a6eb4465d2cac4b