The head rotations for custom entities look bad. It looks as if the joints are dislocated.

Summary: The head rotations for custom entities look bad. It looks as if the joints are dislocated.

Verification builds: 1.12.0.5

Impact: It makes some of the custom entities have weird looking head rotations. This is especially noticeable for the Spectacled Bear which has had its attack animation broken.

Repro Steps:

1. Load Wildlife: Jungle world template.
2. Spawn a crocodile, jaguar, jungle dragon and/or a spectacled bear.
3. Examine the head rotations for each entity.
4. It's most noticeable during the Spectacled Bear attack animation.
5. Change to survival mode and hit the Spectacled Bear.
6. Watch the Spectacled Bear attack animation.

Observed Results:

The joints look dislocated. The head of the spectacled bear during the attack animation looks bad.

Expected Results: The head rotation should look fine. There should be no issues with the head for the Spectacled Bear.

Screenshots/Videos attached: Yes

Notes: