Sweep Attacks will hurt your tamed mobs, which will damage them.
Also, it can hurt Neutral Mobs like Zombie Pigman and Wolves, which can aggravate them to attack you.
Comments 5
Confirmed for 16w04a
@Brian and Roy
This is an issue that should be fixed, as it hinders you in fights when around pets or Wolves/Pigman, which something that was made to help you now hurts you sometimes.
I imagine this is working as intended. Splash damage potions (another AOE attack) also hit everything nearby, regardless of whether friendly or not.