From 4471eb587d9091ffeb9e115d51001e53a60d0a19 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Tue, 9 Jan 2024 13:11:25 +0400
Subject: [PATCH] Fix possible crash in gift box sticker lookup.

---
 Telegram/SourceFiles/chat_helpers/stickers_gift_box_pack.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Telegram/SourceFiles/chat_helpers/stickers_gift_box_pack.cpp b/Telegram/SourceFiles/chat_helpers/stickers_gift_box_pack.cpp
index e20c361d66..f54b1f1d35 100644
--- a/Telegram/SourceFiles/chat_helpers/stickers_gift_box_pack.cpp
+++ b/Telegram/SourceFiles/chat_helpers/stickers_gift_box_pack.cpp
@@ -26,6 +26,8 @@ DocumentData *GiftBoxPack::lookup(int months) const {
 	const auto fallback = _documents.empty() ? nullptr : _documents[0];
 	if (it == begin(_localMonths)) {
 		return fallback;
+	} else if (it == end(_localMonths)) {
+		return _documents.back();
 	}
 	const auto left = *(it - 1);
 	const auto right = *it;