d1a52439ca
I tested against a few example apps and found this case is actually very common. These full screen/pass clips render nothing to the depth buffer can be particularly troublesome in the presence of backdrop filters (due to clip replay). While this case doesn't actually result in anything getting written to the depth buffer, we still end up overwriting the entire stencil buffer twice: Once for the preparation draw, and again for the depth buffer transfer/stencil cleanup draw.
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