Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  45c875c7b55ff956d4942ca4a6f5fa6e61832d2b

Don't call reset() on ArrayObject's

That does not work in HHVM, and is also totally unnecessary.
See https://github.com/facebook/hhvm/blob/master/hphp/doc/inconsistencies#L90.

Change-Id: I18b5ef53e3ebad761bc4f29115cecbb455ef6720