Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  685ed24a80692c7da511c8df443b1fa9cfa0970d

Change return value of LanguageFallbackChain::extractPreferredValue()

per talk with Denny.

Change-Id: Ie08ee3f9ebb5014541f5be671f06e635c5783e4d