Comment 8 for bug 1717923

So the commit https://github.com/GNOME/mutter/commit/43eeb009ce78588db9fba48574f377629d5de1aa avoids invalid configurations to be migrated. As for the crash nor me or Jonas can reproduce it.

I've tried to get informations from the coredump, but it doesn't contain any information about the packages versions, so I can't get the proper stacktrace out of it.