Mob Geometry - some mob heads may appear detached when they are sitting or sleeping (Cats and Villagers)

Verification builds:
1.12.0.2 Beta | Windows 10: Yes

Summary:
Some mobs have broken geometry in the 1.12.0.2 beta, and their heads appear in the wrong place when they are sitting or sleeping.

Steps to Reproduce:

1. Find a sitting tamed cat
2. Find a sleeping villager

Observed Results:
The cat's head is lower than it should be, and the villager's heads are floating above them when they sleep.

Expected Results:
The head position should be normal and attached to their bodies.

Screenshots/Videos attached: Yes

Notes: