From d0c2bec9254ec766c4fe66e7cb8b6b90651f56c1 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Sun, 12 Feb 2023 14:39:06 +0400
Subject: [PATCH] Fix crash clearing chats list before histories.

---
 Telegram/SourceFiles/data/data_session.cpp            | 3 +++
 Telegram/SourceFiles/dialogs/dialogs_indexed_list.cpp | 1 +
 Telegram/SourceFiles/dialogs/dialogs_list.h           | 4 ++++
 Telegram/SourceFiles/dialogs/dialogs_main_list.cpp    | 1 +
 4 files changed, 9 insertions(+)

diff --git a/Telegram/SourceFiles/data/data_session.cpp b/Telegram/SourceFiles/data/data_session.cpp
index 2a68d0ff2..d8afb561f 100644
--- a/Telegram/SourceFiles/data/data_session.cpp
+++ b/Telegram/SourceFiles/data/data_session.cpp
@@ -381,6 +381,9 @@ void Session::clear() {
 	cSetRecentInlineBots(RecentInlineBots());
 	cSetRecentStickers(RecentStickerPack());
 	HistoryView::Element::ClearGlobal();
+	_contactsNoChatsList.clear();
+	_contactsList.clear();
+	_chatsList.clear();
 	_histories->clearAll();
 	_webpages.clear();
 	_locations.clear();
diff --git a/Telegram/SourceFiles/dialogs/dialogs_indexed_list.cpp b/Telegram/SourceFiles/dialogs/dialogs_indexed_list.cpp
index 132b946eb..2254346cf 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_indexed_list.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_indexed_list.cpp
@@ -205,6 +205,7 @@ void IndexedList::remove(Key key, Row *replacedBy) {
 }
 
 void IndexedList::clear() {
+	_list.clear();
 	_index.clear();
 }
 
diff --git a/Telegram/SourceFiles/dialogs/dialogs_list.h b/Telegram/SourceFiles/dialogs/dialogs_list.h
index baf0a3eea..7b1bd84f2 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_list.h
+++ b/Telegram/SourceFiles/dialogs/dialogs_list.h
@@ -23,6 +23,10 @@ public:
 	List &operator=(List &&other) = default;
 	~List() = default;
 
+	void clear() {
+		_rows.clear();
+		_rowByKey.clear();
+	}
 	[[nodiscard]] int size() const {
 		return _rows.size();
 	}
diff --git a/Telegram/SourceFiles/dialogs/dialogs_main_list.cpp b/Telegram/SourceFiles/dialogs/dialogs_main_list.cpp
index d0197d391..b9c7b2c7b 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_main_list.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_main_list.cpp
@@ -81,6 +81,7 @@ void MainList::clear() {
 		recomputeFullListSize();
 	});
 	const auto notifier = unreadStateChangeNotifier(true);
+	_pinned.clear();
 	_all.clear();
 	_unreadState = UnreadState();
 	_cloudUnreadState = UnreadState();