From 93164808840efa78933249e9bea8279becb82717 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 5 Jun 2025 09:22:44 +0400
Subject: [PATCH] Don't generate joined message in monoforums.

---
 Telegram/SourceFiles/history/history.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/history/history.cpp b/Telegram/SourceFiles/history/history.cpp
index 1bb9b4fb23..a1731627a6 100644
--- a/Telegram/SourceFiles/history/history.cpp
+++ b/Telegram/SourceFiles/history/history.cpp
@@ -3440,9 +3440,10 @@ Data::HistoryMessages *History::maybeMessages() {
 HistoryItem *History::insertJoinedMessage() {
 	const auto channel = peer->asChannel();
 	if (!channel
+		|| channel->isMonoforum()
 		|| _joinedMessage
 		|| !channel->amIn()
-		|| (peer->isMegagroup()
+		|| (channel->isMegagroup()
 			&& channel->mgInfo->joinedMessageFound)) {
 		return _joinedMessage;
 	}