immutable collection startup crash with aether 1.20.1

[sisby-folk]

doesn't occur on fabric, naturally

https://mclo.gs/BAYOb4D

The-Aether-Team/The-Aether#2582

[bconlon1]

The relevant Fabric API mixin that prevents this is: https://github.com/FabricMC/fabric/blob/1.20.1/fabric-resource-loader-v0/src/main/java/net/fabricmc/fabric/mixin/resource/loader/ResourcePackManagerMixin.java

It seems that it was added by 1.21.1 to QFAPI: https://github.com/QuiltMC/quilted-fabric-api/blob/1.21.1/fabric-resource-loader-v0/src/main/java/net/fabricmc/fabric/mixin/resource/loader/ResourcePackManagerMixin.java

But it didn't exist in 1.20.1 for QFAPI: https://github.com/QuiltMC/quilted-fabric-api/blob/1.20.1/fabric-resource-loader-v0/src/main/java/net/fabricmc/fabric/mixin/resource/loader/ResourcePackManagerMixin.java

[jakeayy]

Any updates/workarounds on this?