From c1d41c061e940f9adb3ae52fe0a24e1338f31735 Mon Sep 17 00:00:00 2001
From: vadimd333 <33731676+vadimd333@users.noreply.github.com>
Date: Wed, 10 Jun 2026 17:49:24 +0300
Subject: [PATCH] Update async.c

https://github.com/OpenSIPS/opensips/issues/3914
---
 modules/tm/async.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/tm/async.c b/modules/tm/async.c
index 80e946d290c..639d9eca206 100644
--- a/modules/tm/async.c
+++ b/modules/tm/async.c
@@ -432,7 +432,8 @@ int t_handle_async(struct sip_msg *msg, struct action* a,
 	} else {
 		/* update the cloned UAS (from transaction)
 		 * with data from current msg */
-		if ((t->uas.request) && (route_type==REQUEST_ROUTE))
+		if ((t->uas.request) && (route_type==REQUEST_ROUTE)  &&
+			((msg->msg_flags & FL_TM_FAKE_REQ) == 0))
 			update_cloned_msg_from_msg( t->uas.request, msg);
 	}