From 706557b9648c5045826e714e715c2d54da96f6bc Mon Sep 17 00:00:00 2001
From: HoonBaek <hoon@sendbird.com>
Date: Tue, 26 Oct 2021 11:55:34 +0900
Subject: [PATCH] Do not update last message if message id doesn't match

---
 src/smart-components/ChannelList/utils.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/smart-components/ChannelList/utils.js b/src/smart-components/ChannelList/utils.js
index d410ef2dd..644c954ef 100644
--- a/src/smart-components/ChannelList/utils.js
+++ b/src/smart-components/ChannelList/utils.js
@@ -248,7 +248,9 @@ export const pubSubHandler = (pubSub, channelListDispatcher) => {
   subScriber.set(topics.UPDATE_USER_MESSAGE, pubSub.subscribe(topics.UPDATE_USER_MESSAGE, (msg) => {
     const { channel, message } = msg;
     const updatedChannel = channel;
-    updatedChannel.lastMessage = message;
+    if (updatedChannel.lastMessage && updatedChannel.lastMessage.messageId === message.messageId) {
+      updatedChannel.lastMessage = message;
+    }
     if (channel) {
       channelListDispatcher({
         type: channelActions.ON_LAST_MESSAGE_UPDATED,