Comment 5 for bug 475373

A related issue is that notify-osd does not recognize a panel at the top of the right monitor as being "top-most", due to this snippet of code in src/defaults.c:

    /* select only the top panel */
    gdk_window_get_frame_extents (win, &frame);
    if (frame.x != 0 || frame.y != 0)
        goto failed;

Seeing as the patch does not change this condition, I believe it isn't fixed in the patch either.