
wl_subsurface.set_desync should apply the cached wl_surface state. Otherwise, the sub-surface may be stuck: a commit on the parent surface, if desynchronized, will not commit the sub-surface because it is desynchronized, too. A commit on the sub-surface may not happen, if it is waiting for the frame callback from the previous commit. Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>