From f249caf0c6e12f0e95f35e1422386eb4c35e2a36 Mon Sep 17 00:00:00 2001
From: Danmei Chen <danmei.chen@belledonne-communications.com>
Date: Fri, 17 Apr 2020 11:34:06 +0200
Subject: [PATCH] fix crash of updating imdn list

---
 Classes/ChatConversationImdnView.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Classes/ChatConversationImdnView.m b/Classes/ChatConversationImdnView.m
index 522098fd7..6e87d487e 100644
--- a/Classes/ChatConversationImdnView.m
+++ b/Classes/ChatConversationImdnView.m
@@ -70,7 +70,7 @@ static UICompositeViewDescription *compositeDescription = nil;
 }
 
 - (void)updateImdnList {
-    if (_msg) {
+    if (_msg && linphone_chat_message_get_chat_room(_msg)) {
         _displayedList = linphone_chat_message_get_participants_by_imdn_state(_msg, LinphoneChatMessageStateDisplayed);
         _receivedList = linphone_chat_message_get_participants_by_imdn_state(_msg, LinphoneChatMessageStateDeliveredToUser);
         _notReceivedList = linphone_chat_message_get_participants_by_imdn_state(_msg, LinphoneChatMessageStateDelivered);