The copy for texturing from the current render target was cropped to the
UV bounds, but bilinear filtering at the edges reads one texel beyond them,
which then came from whatever the temp FBO last held. On Vulkan that put
magenta streaks into Need for Speed Shift's sun glow, and also hit Call of
Duty, Burnout Dominator (#12831) and Assassin's Creed Bloodlines (#15821).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>