Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  8d2ac53c886b93b8612a4e190b160c2ecfc3caee

Added SetReference test with invalid property

(bug 55901)
Validation of reference snaks has been fixed. This change sets adds a test regarding invalid
property usage.

Change-Id: Iedfde729e8cecd4258f4cd1948fcd0db6a5fabc8