Having a window switch desktops by disappearing and reappearing lets the window get lost. It is still there but invisible and can be forced to reappear with a xmap request,
This especially occurred when trying to summon an open chat window to another desktop with the psi instant messenger. For further info and a test case see: http://flyspray.psi-im.org/task/952#comment1024.
2009-07-03 22:26:58 UTC in Fluxbox
