Cats remain sitting when damaged

The bug

What I expected to happen was that the cat would exit its sitting position upon being damaged.

What actually happened instead was the cat remained sitting when damaged.

To reproduce this bug:

1. Spawn/find an untamed cat.
2. Tame it and click it to place it in its sitting position.
3. Damage it in any way you see fit.

Footage of the bug

Code analysis

Code analysis by [Mod] Avoma can be found in this comment.