Fixes bug in pipe feeding when filtered routes are kept in table

	  {

	    if (p->export_state != ES_FEEDING)

	      return 1;  /* In the meantime, the protocol fell down. */

	    do_feed_baby(p, p->accept_ra_types, h, n, e);

	    max_feed--;

	  }

      if (p->accept_ra_types == RA_ANY)

	for(e = n->routes; rte_is_valid(e); e = e->next)

	for(e = n->routes; e; e = e->next)

	  {

	    if (p->export_state != ES_FEEDING)

	      return 1;  /* In the meantime, the protocol fell down. */

	    if (!rte_is_valid(e))

	      continue;

	    do_feed_baby(p, RA_ANY, h, n, e);

	    max_feed--;

	  }