somehow the compiler is struggling with `default:` in `switch`, even if it's never reached. This fixes the discrepancy in the `principled emission alpha` test. Pull Request: https://projects.blender.org/blender/blender/pulls/124889
somehow the compiler is struggling with `default:` in `switch`, even if it's never reached. This fixes the discrepancy in the `principled emission alpha` test. Pull Request: https://projects.blender.org/blender/blender/pulls/124889