Dear distro maintainers:This patch fixes a potential crash when user closes a Plasma popup on Wayland. Please consider backporting the patch to plasma-workspace 5.27.7. Thank you.
https://invent.kde.org/plasma/plasma-workspace/-/commit/fc01a7f837d06ee9e92d02f13acb79c2b06e9e3c which fixes https://bugs.kde.org/show_bug.cgi?id=473054