From e91eecf34f7f2b82041ebaf3e7549067738a7311 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Wed, 19 Jan 2022 18:52:01 +0300
Subject: [PATCH] Fix possible crash in empty sticker set.

---
 Telegram/SourceFiles/boxes/stickers_box.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/boxes/stickers_box.cpp b/Telegram/SourceFiles/boxes/stickers_box.cpp
index d11dcefa0..1b8ce6cbc 100644
--- a/Telegram/SourceFiles/boxes/stickers_box.cpp
+++ b/Telegram/SourceFiles/boxes/stickers_box.cpp
@@ -2186,7 +2186,7 @@ void StickersBox::Inner::rebuildAppendSet(
 		raw->yadd = {};
 		auto oldStickerMedia = std::move(raw->stickerMedia);
 		auto oldThumbnailMedia = std::move(raw->thumbnailMedia);
-		raw->stickerMedia = sticker->activeMediaView();
+		raw->stickerMedia = sticker ? sticker->activeMediaView() : nullptr;
 		raw->thumbnailMedia = set->activeThumbnailView();
 		if (raw->thumbnailMedia != oldThumbnailMedia
 			|| (!raw->thumbnailMedia && raw->stickerMedia != oldStickerMedia)) {