From 6052a0de0eb390af5295d2be637ab691ddb10606 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 25 May 2017 03:11:59 +0300
Subject: [PATCH] Fix crash in history geometry update.

---
 Telegram/SourceFiles/historywidget.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/historywidget.cpp b/Telegram/SourceFiles/historywidget.cpp
index cdd19e22d..35e05484f 100644
--- a/Telegram/SourceFiles/historywidget.cpp
+++ b/Telegram/SourceFiles/historywidget.cpp
@@ -4747,8 +4747,12 @@ void HistoryWidget::notify_historyItemLayoutChanged(const HistoryItem *item) {
 
 void HistoryWidget::notify_handlePendingHistoryUpdate() {
 	if (hasPendingResizedItems() || _updateHistoryGeometryRequired) {
-		updateHistoryGeometry();
-		_list->update();
+		if (_list) {
+			updateHistoryGeometry();
+			_list->update();
+		} else {
+			_updateHistoryGeometryRequired = false;
+		}
 	}
 }