glBlitFramebuffer obeys the scissor test, which stays enabled between render
passes with the last pass's rectangle. Resizing a framebuffer after drawing to
a small one copied only that corner, so FF Type-0's battle screen turned into
the red overlay. Disable it around the blit and restore it.
Also fixes Assassin's Creed Bloodlines, Split/Second, Super Stardust's bloom
and MotorStorm.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>