[bug] enchanting armor causes emissive translucent textures to turn fully opaque

[MrRedstoneA1]

Description of Issue

Optifine allows emissive, translucent armor textures such as a tinted visor on a helmet. When enchanted however, these partially transparent textures turn fully opaque. This does not occur with non-emissive translucent textures.

Steps to Reproduce

1. Equip a resource pack that has an emissive, partially transparent armor textures, such as a helmet with a tinted transparent visor. Verify that the tint works and you can see through it.
2. Enchant the helmet.
3. The texture has turned fully opaque and you can't see through it anymore.

OptiFine Version

OptiFine_1.12.2_HD_U_G5

Installation Method

Dropped the jar into the mods folder.

Fabric/Forge Version

14.23.5.2860

Log Files/Crash Reports

Probably not necessary but I will provide if needed.

F3 Debug Screenshot

Prior Testing

[MrRedstoneA1]

Damn, all the additional info is not there. I'll add those screenshots here.

Optifine, emissive, not enchanted:

Optifine, emissive, enchanted with Unbreaking:

No optifine, emissive unavailable, enchanted with Unbreaking:

Optifine, not emissive, enchanted with Unbreaking:

Also note that the issue happens even when enchantment glint is removed via resource pack.