[main] Input region of Xwayland windows extends too far out
Running mutter from main, it seems that for XWayland windows the input region extends too the whole bounding rect, not just (frame rect + resize region).
Reproducer is using the spotify client, clicking right below the lower resizing edge of the window. That would be expected to raise the window underneath, but instead the input goes to the spotify window.
Seems this is fallout from !2175 (merged).