Custom pass vs custom post process depth

Why does a custom post process have depth for transparent while a custom pass does not?

 

Best to check the frame debugger to find the answer, the depth pre-pass for transparent objects likely happens after your custom pass executes.

 

depth prepass is happening before. I see the docs say camera depth will never have transparent and that does seem true even if run after post process.

*Except* if you also have a custom post process. That somehow triggers the custom pass (which is after custom pp) to have depth. In the SetRenderTarget call if I pass the camera depth buffer sure enough no depth. If I don't pass it I have depth (unless there is no custom pp then I don't).

That sort of seems like a bug with not resetting some type of context.