[🐞]: Several Post Effects (shaders) are immediately removed when `mob_head_shaders` is enabled.

[mortuusars]

Before Continuing:

• [X] Check you are using the latest version of the mods and its dependencies
• [X] Always include a latest.log if you are crashing
• [X] Remove mod that enhances Minecraft: Optifine, Sodium, others. The issue persists.
• [X] If you are unsure which mod is the culprit. Disable all of your mods and enable them 1-2 mods each time to isolate the culprit
• [X] Confirm that there is no existing issue with a similar description submitted in the list of issues.

Version

1.20.1-FORGE

Supplementaries Version

supplementaries-1.20-2.8.17

Moonlight Lib Version

moonlight-1.20-2.12.6-forge

Issue Detail

If the shader, that is defined in ClientEvents#EFFECTS_PER_ITEM, is applied but player is not wearing the appropriate head - effect is immediately removed. This breaks mods that apply that shader for their purposes.

It was reported to my mod (Exposure) because in latest version I've added a filter that uses vanilla invert shader. I'll fix this particular issue by creating my own invert shader instead, but since filters for Exposure can be created/modified in a resourcepack - players might run into the same problem when using creeper or desaturate shaders, for example. And other mods can potentially be affected by this as well.