From 9878bb3f01ba2d23793c7dd390bd1d98d7a97575 Mon Sep 17 00:00:00 2001
From: Michael Lidgren <michael@lidgren.net>
Date: Sat, 23 May 2015 13:11:11 +0200
Subject: [PATCH] trigger heartbeat send flush for resends

---
 Lidgren.Network/NetConnection.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lidgren.Network/NetConnection.cs b/Lidgren.Network/NetConnection.cs
index da81ba7..4a091b5 100644
--- a/Lidgren.Network/NetConnection.cs
+++ b/Lidgren.Network/NetConnection.cs
@@ -323,6 +323,9 @@ namespace Lidgren.Network
 				m_sendBufferNumMessages = 0;
 			}
 
+			if (m_sendBufferWritePtr > 0)
+				m_peer.m_needFlushSendQueue = true; // flush in heartbeat
+
 			Interlocked.Decrement(ref om.m_recyclingCount);
 		}