The heads of non-player entity models in the inventory often face off to the side

The Bug:

The heads of non-player entity models in the inventory often face off to the side.

Please note that this issue can only be seen with the models of non-player entities that can be controlled, for example, camels, horses, donkeys, etc... This problem cannot be seen with the models of non-player entities that cannot be controlled, for example, llamas.

Steps to Reproduce:

1. Summon a camel already equipped with a saddle by using the command provided below.

   /summon minecraft:camel ~ ~ ~ {SaddleItem:{id:"minecraft:saddle",Count:1b}}

2. Mount the camel, adjust its rotation, open its inventory, and look at the entity model's head.
3. Take note as to whether or not the heads of non-player entity models in the inventory often face off to the side.

Observed Behavior:

The heads often face off to the side.

Expected Behavior:

The heads would not face off to the side.