Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  82843c3649ee4f64240bd85f2b41a06c31c4fd6a

Don't spoil $wgDevelopmentWarnings in test provider.

mwSetGlobal() works in tests, but not in providers!

Change-Id: Ia1f7a6d3620801220742c809ca0a8df8b0afb14f