diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index 4b278eeb3d..2afe27cfa8 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -5988,6 +5988,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_todo_mark_premium" = "Only subscribers of {link} can mark tasks as done.";
 "lng_todo_premium_link" = "Telegram Premium";
 "lng_todo_mark_restricted" = "{user} has restricted others from marking tasks as done.";
+"lng_todo_mark_forwarded" = "You can't change forwarded checklists.";
 
 "lng_outdated_title" = "PLEASE UPDATE YOUR OPERATING SYSTEM.";
 "lng_outdated_title_bits" = "PLEASE SWITCH TO A 64-BIT OPERATING SYSTEM.";
diff --git a/Telegram/SourceFiles/data/data_media_types.cpp b/Telegram/SourceFiles/data/data_media_types.cpp
index 3fb17b5c44..30b3929be7 100644
--- a/Telegram/SourceFiles/data/data_media_types.cpp
+++ b/Telegram/SourceFiles/data/data_media_types.cpp
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/send_credits_box.h" // CreditsEmoji.
 #include "history/history.h"
 #include "history/history_item.h" // CreateMedia.
+#include "history/history_item_components.h"
 #include "history/history_location_manager.h"
 #include "history/view/history_view_element.h"
 #include "history/view/history_view_item_preview.h"
diff --git a/Telegram/SourceFiles/data/data_session.cpp b/Telegram/SourceFiles/data/data_session.cpp
index f4ec275e32..9ea1f9da3e 100644
--- a/Telegram/SourceFiles/data/data_session.cpp
+++ b/Telegram/SourceFiles/data/data_session.cpp
@@ -4178,10 +4178,7 @@ not_null<TodoListData*> Session::duplicateTodoList(
 	const auto result = todoList(id);
 	result->title = existing->title;
 	result->items = existing->items;
-	for (auto &item : result->items) {
-		item.completedBy = nullptr;
-		item.completionDate = TimeId();
-	}
+	++result->version;
 	return result;
 }
 
diff --git a/Telegram/SourceFiles/data/data_todo_list.h b/Telegram/SourceFiles/data/data_todo_list.h
index a94d8c6760..dd10b8878a 100644
--- a/Telegram/SourceFiles/data/data_todo_list.h
+++ b/Telegram/SourceFiles/data/data_todo_list.h
@@ -63,8 +63,6 @@ struct TodoListData {
 	static constexpr auto kMaxOptions = 32;
 
 private:
-	bool applyCompletionToItems(const MTPTodoCompletion *result);
-
 	const not_null<Data::Session*> _owner;
 	Flags _flags = Flags();
 
diff --git a/Telegram/SourceFiles/history/view/media/history_view_todo_list.cpp b/Telegram/SourceFiles/history/view/media/history_view_todo_list.cpp
index 8249613074..357778cd9d 100644
--- a/Telegram/SourceFiles/history/view/media/history_view_todo_list.cpp
+++ b/Telegram/SourceFiles/history/view/media/history_view_todo_list.cpp
@@ -341,7 +341,14 @@ void TodoList::startToggleAnimation(Task &task) {
 }
 
 void TodoList::toggleCompletion(int id) {
-	if (!canComplete()) {
+	if (_parent->data()->isBusinessShortcut()) {
+		return;
+	} else if (_parent->data()->Has<HistoryMessageForwarded>()) {
+		_parent->delegate()->elementShowTooltip(
+			tr::lng_todo_mark_forwarded(tr::now, Ui::Text::RichLangValue),
+			[] {});
+		return;
+	} else if (!canComplete()) {
 		_parent->delegate()->elementShowTooltip(
 			tr::lng_todo_mark_restricted(
 				tr::now,
diff --git a/Telegram/SourceFiles/window/window_peer_menu.cpp b/Telegram/SourceFiles/window/window_peer_menu.cpp
index 00e7264660..114f0ec207 100644
--- a/Telegram/SourceFiles/window/window_peer_menu.cpp
+++ b/Telegram/SourceFiles/window/window_peer_menu.cpp
@@ -66,6 +66,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mtproto/mtproto_config.h"
 #include "history/history.h"
 #include "history/history_item_helpers.h" // GetErrorForSending.
+#include "history/history_item_components.h"
 #include "history/view/history_view_context_menu.h"
 #include "window/window_separate_id.h"
 #include "window/window_session_controller.h"
@@ -2077,6 +2078,7 @@ bool PeerMenuShowAddTodoListTasks(not_null<HistoryItem*> item) {
 	const auto todolist = media ? media->todolist() : nullptr;
 	const auto appConfig = &item->history()->session().appConfig();
 	return item->isRegular()
+		&& !item->Has<HistoryMessageForwarded>()
 		&& todolist
 		&& (todolist->items.size() < appConfig->todoListItemsLimit())
 		&& (item->out() || todolist->othersCanAppend());