The following tests are an image failures since r260950: compositing/iframes/border-radius-composited-frame.html [ ImageOnlyFailure ] compositing/iframes/border-uneven-radius-composited-frame.html [ ImageOnlyFailure ] See: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r260953%20(13562)/compositing/iframes/border-radius-composited-frame-diff.png See: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r260953%20(13562)/compositing/iframes/border-uneven-radius-composited-frame-diff.png
I'm going to fix this in bug#242097.
Fixed by 252014@main. *** This bug has been marked as a duplicate of bug 242097 ***