Fix possible crash in story deletion.

Fixes #26571.
2023-07-25 20:24:13 +04:00 · 2023-07-25 20:24:13 +04:00 · 35f0f87f73
parent a85f33f7d3
commit 35f0f87f73
1 changed files with 4 additions and 3 deletions
--- a/Telegram/SourceFiles/media/stories/media_stories_controller.cpp
+++ b/Telegram/SourceFiles/media/stories/media_stories_controller.cpp
@ -872,9 +872,10 @@ bool Controller::changeShown(Data::Story *story) {
 	if (_shown == id && !sessionChanged) {
 		return false;
 	}
-	if (const auto now = this->story()) {
-		now->owner().stories().unregisterPolling(
-			now,
+	if (_shown) {
+		Assert(_session != nullptr);
+		_session->data().stories().unregisterPolling(
+			_shown,
 			Data::Stories::Polling::Viewer);
 	}
 	if (sessionChanged) {