In my most recent survival, I made my entire house underwater, including the farm. Where I have the cows in my farm, two witches spawned due to the low light level (fixed). I started fighting against them, but when both witches were throwing potions one hurt the other one, so a fight between the two witches started. All my cows were killed due to the splash potions, and both witches are still alive.
My question is, can a fight between two witches end?