(lrt-handle-maa-sakod): Correctly handle the case that quail-current-data is nil. (lrt-handle-tone-mark): Fix bug of handling key sequence "hhai" + tone.
(lrt-handle-maa-sakod): Correctly handle the case that quail-current-data is nil. (lrt-handle-tone-mark): Fix bug of handling key sequence "hhai" + tone.