(mface_put_prop): If the new value is the same as the current one, don't increment frame->tick.
(mface_put_prop): If the new value is the same as the
current one, don't increment frame->tick.

xmirror/m17n-lib,xmirror/m17n-lib,xmirror/m17n-lib,xmirror/m17n-lib