Hello. Deleting video doesn't delete notification about reaction to video's comment
1) user1 add video
2) user1 comment this video
3) user2 react to user1's comment
4) delete this video
5) user1 try to open notificatiin "User2 reacted to your comment"
Result: System reirect user1 to dashboard and display message "Video is unavailable".

Expected result: Notification should be removed by itself because video was removed and comment was removed.

Thanks.