Issue updated event doesn't fire when attacments added

[aas]

I have custom mail handler which creates Jira issue and then makes an attachment from message and add it to that issue 

attachmentManager.createAttachment(File, String, String, User, Issue);

It works I have new issue with attachment.
Then I try to make webhook with Issue Related Events 

But webhooks works only on issue created and sends json with empty attachments
{"webhookevent":"jira:issue_created" "id":"123","key":"ABC", "fields":{"project"{"id", "key", "name"}, "attachment":[]}}

[Brant Schroeder]

@aas You would just need to add the attachment as part of a comment and that will fire off the event.