Java Edition 12w50b

12w50b was released to fix some of the bugs and crashes in the 12w50a snapshot.

Changes

 * Thorns damage is now customizable.
 * Fire Protection now extinguishes players more quickly.
 * Blast Protection now reduces explosion recoil.

Fixes
10 bugs fixed


 * Fixed mobs walking slowly when you hit them
 * Fixed server/client desync of chests
 * Fixed flame effect on arrows when fired into a pressure plate and player immediately engages flight mode
 * Fixed Tool highlight shows when itemstack changes
 * Fixed NullPointerException when pressing + with nothing in your hand
 * Fixed zombies which sometimes stop attacking
 * Fixed the Unbreaking enchantment not working on armor
 * Fixed opening a GUI and showing the item name in the hotbar again
 * Fixed an enchanted item bug in 3D
 * Fixed the inability to remove partial XP bars from the "xp -1L" command when you're between level 0 and 1