Using /playanimation and then opening inventory will not update the inventory character nor the paper doll in the corner of the screen.

Steps to reproduce:

1. Use this command: /playanimation @p animation.evoker.casting j 999
2. Open inventory or enable paper doll and run.

Results:

Unlike when riding something or doing an emote, the character will remain in the idle pose.

What I expected to happen:

The inventory player and paper doll should show the animation correctly.