Read the post from Lar_q on the 1st page of the thread. My quotes were cut'n'pasted straight from that without alteration, Hiver.
And given that the games doesn't give you a way to respec until pretty late, and using it can cost you skill books you'll never be able to find again, having your build destroyed by a careless patch really is quite annoying. All they had to do was apply their change to hard mode and I would have kept playing along on normal and cared about the resist nerf. I already had to restart thanks to henchmen getting a radical change in implementation a couple of days into my 1st game, it really gets old.