Enabling/disabling antialiasing in Quality Settings causes Game view to render incorrectly. The specifics of how it will render are not consistent. Different AA settings often produce different results.

Repro Steps:

1) Enable DX12 in editor (-allow-d3d12 command line argument)
2) Open attached project and scene "Test"
3) Change AA between disabled and various different settings
4) Notice issue in Game view
5) Moving game window around and docking in different ways also produces different results

Regression from V5.3.0f4