Topic on Talk:Requests for comment/Localisation format

Will we be able to override messages from other extensions/core with this?

Either way, this is great. +1

There should not be a change in functionality, so this question is not relevant in the scope of this RfC I think. As far as I know, is is possible now, and should remain possible, although it's discouraged. There is https://gerrit.wikimedia.org/r/#/c/98078/ to allow a proper solution.