Updated mediawiki/extensions/Wikidata
Project: mediawiki/extensions/WikibaseDataModel  36986a3b9265eceba314a2e8812e10d66218e006

Allow comparison through equals method if exists

Change-Id: I8c25ef274b557d58d8f82bfb52ff09265e222126
(cherry picked from commit 0e340c691b9844d83431360c927e7123f4359e61)