build/external/patches/quicly_0.1.0-vpp/0001-quicly-send-assert-consistency.patch

diff --git a/lib/quicly.c b/lib/quicly.c
index 71fa149..668677f 100644
--- a/lib/quicly.c
+++ b/lib/quicly.c
@@ -3631,10 +3631,14 @@ int quicly_send(quicly_conn_t *conn, quicly_datagram_t **packets, size_t *num_pa
      * progress (i.e. due to the payload of lost packet being cancelled), then PTO for the previously sent packet.  To accomodate
      * that, we allow to rerun the do_send function just once.
      */
-    if (s.num_packets == 0 && conn->egress.loss.alarm_at <= now) {
+    if (conn->egress.loss.alarm_at <= now) {
         assert(conn->egress.loss.alarm_at == now);
-        if ((ret = do_send(conn, &s)) != 0)
-            return ret;
+        if (s.num_packets == 0) {
+            if ((ret = do_send(conn, &s)) != 0)
+                return ret;
+        } else {
+            conn->egress.loss.alarm_at = now + 1;
+        }
     }
     assert_consistency(conn, 1);