Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  80b4078508749b9f76e3ea1803e71b4023d80f28

Output something even if 0 campaigns migrated.

Method documentation

Add FIXME about missing return

Change-Id: Ia044d27e935adeb06709467c2e9e43ced5c62ab5