From 8f4fdb6d0d6c135c21bc806a89e74a1a89a9f0ba Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 25 Sep 2020 20:22:43 +0300
Subject: [PATCH] Fix crash in mark folder as read.

---
 Telegram/SourceFiles/window/window_peer_menu.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/window/window_peer_menu.cpp b/Telegram/SourceFiles/window/window_peer_menu.cpp
index db943a372b..688544cf42 100644
--- a/Telegram/SourceFiles/window/window_peer_menu.cpp
+++ b/Telegram/SourceFiles/window/window_peer_menu.cpp
@@ -85,11 +85,13 @@ void MarkAsReadHistory(not_null<History*> history) {
 }
 
 void MarkAsReadChatList(not_null<Dialogs::MainList*> list) {
+	auto mark = std::vector<not_null<History*>>();
 	for (const auto &row : list->indexed()->all()) {
 		if (const auto history = row->history()) {
-			MarkAsReadHistory(history);
+			mark.push_back(history);
 		}
 	}
+	ranges::for_each(mark, MarkAsReadHistory);
 }
 
 class Filler {