FS-4655 its not a bug its a behaviour request, try this patch

src/switch_core_session.c

@@ -1682,6 +1682,11 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_uuid(switch_core_session
 
 	switch_assert(use_uuid);
 
+	if (!strcmp(use_uuid, session->uuid_str)) {
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+
 	switch_mutex_lock(runtime.session_hash_mutex);
 	if (switch_core_hash_find(session_manager.session_table, use_uuid)) {
 		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "Duplicate UUID!\n");