spice: handle client disconnect gracefully
spice: handle client disconnect gracefully

If the client (spice-gtk) disconnects e.g. during a file transfer,
the mux stream gets closed and the count of read bytes does not
match the count that the client previously announced.
However, in this case, we mustn't simply return, since that would
prevent any further connections.

Signed-off-by: Jakub Janků <e6d62f7189d9c45efd907e4f2baf6f535f551138@redhat.com>

GNOME/phodav,GNOME/phodav