45dcc61fd2
The Cryptomatte node considers preview channels as part of the Cryptomatte layers, producing bad pick outputs at best and bad mattes at worst. The Cryptomatte specification specifies that a layer with the same name as the typename is a (Now deprecated) preview layer, so it should be ignored, which is what the patch does. Pull Request: https://projects.blender.org/blender/blender/pulls/115879