modules/hints: data from hints is never authoritative

modules/hints/hints.c

@@ -108,6 +108,7 @@ static int query(knot_layer_t *ctx, knot_pkt_t *pkt)
 		return ctx->state;
 	}
 	DEBUG_MSG(qry, "<= answered from hints\n");
+	qry->flags &= ~QUERY_DNSSEC_WANT; /* Never authenticated */
 	qry->flags |= QUERY_CACHED|QUERY_NO_MINIMIZE;
 	pkt->parsed = pkt->size;
 	knot_wire_set_qr(pkt->wire);