From 0fba22ad105d5f76260b1cf0e46fb79df7ae60a7 Mon Sep 17 00:00:00 2001
From: Goffi <goffi@goffi.org>
Date: Tue, 3 Oct 2023 15:27:07 +0200
Subject: [PATCH] plugin XEP-0338: be sure to add the `<group>` element only
 once:

rel 424
---
 libervia/backend/plugins/plugin_xep_0338.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libervia/backend/plugins/plugin_xep_0338.py b/libervia/backend/plugins/plugin_xep_0338.py
index f9f4855b..c0604072 100644
--- a/libervia/backend/plugins/plugin_xep_0338.py
+++ b/libervia/backend/plugins/plugin_xep_0338.py
@@ -124,8 +124,11 @@ class XEP_0338:
         media_data: dict,
         desc_elt: domish.Element,
     ) -> None:
-        jingle_elt = session["jingle_elt"]
-        self.add_group_element(jingle_elt, session)
+        if content_name == next(iter(session["contents"])):
+            # the <group> element must be added only once, so we do it only for the first
+            # content
+            jingle_elt = session["jingle_elt"]
+            self.add_group_element(jingle_elt, session)
 
     def _jingle_handler_trigger(
         self,