cursor: Guard against 0 serial
On error the wlr functions return 0. We don't want to use
that as last serial.
Signed-off-by: Guido Günther agx@sigxcpu.org
On error the wlr functions return 0. We don't want to use
that as last serial.
Signed-off-by: Guido Günther agx@sigxcpu.org