Savage Blow's top and bottom hits do same damage

Same thing happened to my dit, with some level of SB where it hits five times.

 Spoiler

I was thinking it might be because of the rebalance patch, mostly because I didn't have a dit until then, but then I think I vaguely remember the same thing happening to my TB while I was hunting Headless Horseman a while back, it had accuracy problems and some of the hits on Barrage were repeated.