***************
*** 623,626 ****
      {
        nkey = _rl_subseq_getchar (cxt->okey);
        r = _rl_dispatch_subseq (nkey, cxt->dmap, cxt->subseq_arg);
        cxt->flags |= KSEQ_DISPATCHED;
--- 646,654 ----
      {
        nkey = _rl_subseq_getchar (cxt->okey);
+       if (nkey < 0)
+ 	{
+ 	  _rl_abort_internal ();
+ 	  return -1;
+ 	}
        r = _rl_dispatch_subseq (nkey, cxt->dmap, cxt->subseq_arg);
        cxt->flags |= KSEQ_DISPATCHED;