[1.21.3 NeoForge] ArchLoom trying to remap accessor away from Mojmap

[TelepathicGrunt]

The problematic Accessor Mixin and branch it is in:
https://github.com/TelepathicGrunt/StructureVoidToggle/blob/Arch-1.21.3/common/src/main/java/com/telepathicgrunt/structurevoidtoggle/mixin/StructureVoidBlockAccessor.java

I am using arch loom 1.7-SNAPSHOT and arch plugin 3.4-SNAPSHOT and currently finding when I run Neoforge, it crashes de to this accessor mixin's SHAPE target to field_11589 which fails. Neoforge uses Mojmap so there should not be remapping done here. It should all stay in Mojmap.

Caused by: org.spongepowered.asm.mixin.gen.throwables.InvalidAccessorException: No candidates were found matching field_11589:Lnet/minecraft/world/phys/shapes/VoxelShape; in net/minecraft/world/level/block/StructureVoidBlock for structure_void_toggle.mixins.json:StructureVoidBlockAccessor from mod structure_void_toggle->@Accessor[FIELD_SETTER]::setSHAPE(Lnet/minecraft/world/phys/shapes/VoxelShape;)V [ACCESSOR Applicator Phase -> structure_void_toggle.mixins.json:StructureVoidBlockAccessor from mod structure_void_toggle -> Apply Accessors -> -> Locate -> structure_void_toggle.mixins.json:StructureVoidBlockAccessor from mod structure_void_toggle->@Accessor[FIELD_SETTER]::setSHAPE(Lnet/minecraft/world/phys/shapes/VoxelShape;)V]

Full error:
https://pastebin.com/raw/aij6XV1Q

[Juuxel]

I can't reproduce this with 1.9 in isolation without Arch Plugin. Arch Plugin isn't currently compatible with Loom 1.9, so I'll try it again once that's fixed.