Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  c248886822e390567ca270b96d5029076842b135

Deal with failure to understand "this" in UWI

Breaks the interface in Google Chrome (at least), now fixed.

Bug: 49550
Change-Id: Ib2aeec742b6db04be8ceb0097b8ab06d91f9e033