When an application loses its connection to the X11 server, all the windows in
its save-set are saved by reparenting them back to their closest ancestor. Also,
to they are unconditionally mapped. This second property is exactly what we
need: All windows should be in mapped state, else the next window manager which
starts up won't be managing them.
This should fix all bugs where clients where lost due to a restart, yay! :)
Signed-off-by: Uli Schlachter <psychon@znc.in>
58f79dca8a