From 004a60ded550500d54cf4a63777a6dff889a714f Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 6 Apr 2023 16:51:57 +0400
Subject: [PATCH] Fix a possible crash in folder link export.

---
 Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp b/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp
index 7d43dc9b6..6e88d3757 100644
--- a/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp
+++ b/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp
@@ -777,12 +777,13 @@ void EditFilterBox(
 			data->force_assign(updated);
 			const auto id = updated.id();
 			state->links = owner->chatsFilters().chatlistLinks(id);
-			ExportFilterLink(id, shared, [=](Data::ChatFilterLink link) {
+			ExportFilterLink(id, shared, crl::guard(box, [=](
+					Data::ChatFilterLink link) {
 				Expects(link.id == id);
 
 				*data = data->current().withChatlist(true, true);
 				window->show(ShowLinkBox(window, updated, link));
-			}, [=](QString error) {
+			}), crl::guard(box, [=](QString error) {
 				const auto session = &window->session();
 				if (error == u"CHATLISTS_TOO_MUCH"_q) {
 					window->show(Box(ShareableFiltersLimitBox, session));
@@ -796,7 +797,7 @@ void EditFilterBox(
 				} else {
 					window->show(ShowLinkBox(window, updated, { .id = id }));
 				}
-			});
+			}));
 		}));
 	}, createLink->lifetime());
 	AddSkip(content);