Remember the problem with arrows, sometimes looking as if they hit an invisible wall right in front of the player? Just fixed it for 1.9

还记得弓箭的问题吗，有时它们看起来好像射到一面玩家正前方的隐形的墙上？就在1.9修复这问题

注：感觉这bug一修复打骷髅弓箭手就变得更困难了...