Steps to reproduce :

1. Change notification scheme of project to remove all recipients from Issue Updated event.
2. Make sure you get notified for Issue Commented event.
3. Add a comment on an issue individually. Make sure you get notification for Issue commented
4. Bulk edit some issues from this project and add comment to issues
5. No notification is sent out. This is because when we add comments to issues in bulk, it uses Issue Updated event instead of issue Issue Commented event.

This is confusing for the users.