Whilst flying about in the new end I came across one of the new dungeons and tried to pick up the EnderDragon head using my (Button3) Mouse click after doing a little extra testing It seemed that the EnderDragon head would cause the game to crash if picked up using a free slot in the inventory and even if placed by the user.

What I expected to happen was...:
I used my (Button3) Mouse click whilst in creative on an EnderDragon head hoping it would appear in my inventory

What actually happened was...:
Once I had clicked The game froze for a second or two and then crashed showing the launcher crash dialouge

Steps to Reproduce:
1. Fight the EnderDragon to open an EnderGateway
2. Go through the EnderGateway and find and EndCity dungeon with a ship
3. Find the dragon head at the front of the ship and try to pick it up using (Button3) Mouse click with an enchanted diamond pickaxe (Efficiency 5, Durability 657 / 1561) in hand and full hotbar