KS_CHANGE
k->k_state |= KS_CHANGE;
} else if (k->k_state & KS_CHANGE) {
k->k_state &= ~(KS_ADD|KS_CHANGE|KS_DEL_ADD);
k->k_state &= ~(KS_DELETE | KS_ADD | KS_CHANGE | KS_DEL_ADD