Ancestral Call support gem bug

If you have support gems socketed into Ancestral call and then you refund the points, the gems disappear.

+1
It's a forgettable trap. We don't mind things about we just throw out now, then remenber something wrong when you go back.
I lost 4, but it was little damage they were neither rare nor high quality ones.
It'd be good for a quick fix if you refund the ancestral point then get a error message to remove the support gems first.