From 49def354bd0c05842e74c87e6a02c6d45de1e90d Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Sun, 17 Dec 2017 12:33:08 +0400
Subject: [PATCH] Fix bug causing crash in group recounting.

---
 Telegram/SourceFiles/history/history_item.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Telegram/SourceFiles/history/history_item.cpp b/Telegram/SourceFiles/history/history_item.cpp
index fe5db1e24..0ff81dfc6 100644
--- a/Telegram/SourceFiles/history/history_item.cpp
+++ b/Telegram/SourceFiles/history/history_item.cpp
@@ -1200,6 +1200,7 @@ void HistoryItem::makeGroupLeader(
 
 	const auto leaderChanged = (group->leader != this);
 	if (leaderChanged) {
+		group->leader = this;
 		_flags &= ~MTPDmessage_ClientFlag::f_hidden_by_group;
 		setPendingInitDimensions();
 	}