@Sam, Jason: I marked bu #733409 as a duplicate, seems to give some info there.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/723014 Title: New window tracking system breaks in the case where windows try to restack relative to destroyed windows that were never mapped -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
