MINOR: quic: Wrong packet number space selection in quic_loss_pktns()

Ensure the tick is set for a packet number space loss time before
selecting it.
diff --git a/include/haproxy/quic_loss.h b/include/haproxy/quic_loss.h
index 16fe5aa..ca7a026 100644
--- a/include/haproxy/quic_loss.h
+++ b/include/haproxy/quic_loss.h
@@ -110,9 +110,10 @@
 
 	pktns = &qc->pktns[QUIC_TLS_PKTNS_INITIAL];
 	TRACE_PROTO("pktns", QUIC_EV_CONN_SPTO, qc->conn, pktns);
-	for (i = QUIC_TLS_PKTNS_01RTT; i < QUIC_TLS_PKTNS_MAX; i++) {
+	for (i = QUIC_TLS_PKTNS_HANDSHAKE; i < QUIC_TLS_PKTNS_MAX; i++) {
 		TRACE_PROTO("pktns", QUIC_EV_CONN_SPTO, qc->conn, &qc->pktns[i]);
-		if (qc->pktns[i].tx.loss_time < pktns->tx.loss_time)
+		if (tick_isset(pktns->tx.loss_time) &&
+		    qc->pktns[i].tx.loss_time < pktns->tx.loss_time)
 			pktns = &qc->pktns[i];
 	}