There is a bug when opening the inventory to get a head, they face the wrong way, and the dragon head glitches out.

If you open up the inventory and search up Skull, or just simply look for the skulls in one of the tabs, they will all appear to be facing backwards, and for me, out of the box a little bit. This does not happen in any other versions at all, just the release of 1.11. Also, when placing down a dragon head or removing one while there is one in your right or left hand, the skull will become huge, and then to the regular size. See pictures for more info.