[Frank Cox]

I've only done this once but I think this is what happened.

I have two genres, A and B, and decide to merge them into one single genre named A.

So, rename B as A. Window pops up, "Do you really want to merge B into A".

I click ok and nothing visibly happens, so I click ok two or three more times and suddenly it's done.

I think it starts work as soon as you click ok the first time but since the click ok window never changes it's impossible to know that.

That window should change to say "working" instead.