From af543a58f28363dc6f358c7431c5d27d07514961 Mon Sep 17 00:00:00 2001
From: somdoron <somdoron@gmail.com>
Date: Wed, 18 Nov 2015 15:02:19 +0200
Subject: [PATCH] Fix a bug when stream_engine try to set alreadt set metadata

---
 src/stream_engine.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/stream_engine.cpp b/src/stream_engine.cpp
index 87186cc0..faca8929 100644
--- a/src/stream_engine.cpp
+++ b/src/stream_engine.cpp
@@ -842,7 +842,7 @@ int zmq::stream_engine_t::push_msg_to_session (msg_t *msg_)
 }
 
 int zmq::stream_engine_t::push_raw_msg_to_session (msg_t *msg_) {
-    if (metadata)
+    if (metadata && metadata != msg_->metadata())
         msg_->set_metadata(metadata);
     return push_msg_to_session(msg_);
 }