Renders a extra head model when in spectator/Replay/freecam

[MorningMC]

This mod renders a extra head model when in spectator/Replay/freecam
Minecraft version 1.21.10
Firstperson version 2.6.0

Screenshot in freecam:
(with Skin Layer 3D (mod) and Better Expressions (resourcepack) installed)

Screenshot in spectator mode:
(same as above)

No Replay screenshot due to wayland clipboard issue

Press F6 (toggle firstperson render) cannot disable it
Unload the mod can fix it
Full log here

[tr7zw]

Well, guess of cause some new spectator issue had to slide in.