I guess since I guessed the wrong component I should add the nautilus version:
Version information: nautilus 2.18.0.1-0ubuntu1 -- Empty wastebasket generates WM_TRANSIENT_FOR window manager warning https://launchpad.net/bugs/91576 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
