Make Media: namespace behave identical to File: namespace
[[Media:…]] is a sudo namespace. As far as I get it the main reason is to
be able to link to files without getting thumbnail images. The same can
be done with [[:File:…]].
In the current state of this parser all File links are excluded, no matter
if prefixed with a colon or not. For consistency Media links should behave
This behavior might change later depending on the outcome of T223290.