Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  3e32bd6e051d089a1b19966a6d1c626f5a813e4b
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Passing entity stub object to entity selector widget

- patch set 2: Added some documentation and throw error if incomplete stub object is given
  for entity selector selectedEntity.

Change-Id: I4afd88c8bea4e0a43cda48c2f8e78e52516cac91