Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  801ef55f548e9715a146a95706a2896e08c16459

Allow editors to know that undo is unsupported

This avoids confusing behaviour
Introduce M.query to allow easy lookup of query string parameters
Use a nasty alert since this is an edge case and won't be surfaced
to too many people thus doesn't really warrant much new design work
(Note a toast might be missed)

Bug: 54851
Change-Id: If3b681e0de598dca32719fa0f71a7653aaa0bf77