From 3904a9f9a0908ff96a37fcffb15260a7c351e815 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Tue, 11 Dec 2018 17:12:35 +0400
Subject: [PATCH] Add guard in layers destruction.

---
 Telegram/SourceFiles/window/layer_widget.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/window/layer_widget.cpp b/Telegram/SourceFiles/window/layer_widget.cpp
index 73e9fa726..7d918fe62 100644
--- a/Telegram/SourceFiles/window/layer_widget.cpp
+++ b/Telegram/SourceFiles/window/layer_widget.cpp
@@ -559,9 +559,12 @@ void LayerStackWidget::startAnimation(
 	} else {
 		setupNewWidgets();
 		setCacheImages();
+		const auto weak = make_weak(this);
 		clearOldWidgets();
-		prepareForAnimation();
-		_background->startAnimation(action);
+		if (weak) {
+			prepareForAnimation();
+			_background->startAnimation(action);
+		}
 	}
 }