Also proposed in the Community-Wishlist-Survey-2016. The proposal received 47 support votes and was ranked #25 out of 265 proposals. View full proposal with discussion and votes here.
Supposing category:A redirects to category:B.
Would it be feasible to automatically move all articles placed in cat:A into cat:B instead?
Alternateively, would it be possible to create a Specialpage that lists all categories that are redirects, so that a bot can do the moving?
See Also: T7346