Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  ac3ecb4a931e905b88df85f7c56863293e0b54fd
null
(bug 43585) Empty labels weren't recognised correctly

Entity::getLabel returns false or a string so testing against false
is the way to find empty labels.

Change-Id: I50b41530d7f2dc95bb4c01741c1a5890cbda39a5