window: Don't deref focus widget if there isn't one
window: Don't deref focus widget if there isn't one

Fantu/compositor-spice,sir-murray/weston,Fantu/compositor-spice,krezovic/weston,xorgy/weston,kwm81/weston,giucam/weston,eyolfson/weston,krezovic/weston,Tarnyko/weston-xdg_surface_present,jonnylamb/weston,udoprog/weston,giucam/weston,Gnurou/weston,Fantu/compositor-spice,kwm81/weston,eyolfson/weston,jonnylamb/weston,udoprog/weston,xorgy/weston,mchalupa/weston,Tarnyko/weston-xdg_surface_present,mchalupa/weston,Gnurou/weston,sir-murray/weston