Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  38642bd0b9315c4c7cc48673bfae8459b0442932

Fix wrong namespace for StorageException

RedirectCreationInteractor had the wrong namespace for StorageException,
so the catch clauses didn't catch anything.

Change-Id: Iaf5dbe76adc38c8b3a9d923a137fad8798a6c794