So, as many of you know, I own a wither skeleton farm. I go there quite often, and I noticed something strange. On the wiki, is says that wither skeletons can dropp coal, bones, stone swords, and their head; that's it. However, withing the past few weeks, I've noticed them dropping arrows, and pow. 3 unbrk. 3 bows. Even today, I killed one, and it dropped a normal skeleton skull. Is this a bug, or is it intended?