[EMAIL PASSWORD CHANGE] Update notification not sent to all recipients

I have set "new mailbox email" and "updated mailbox email" to "mailbox owner + server owner"

Creating a mailbox is fine; it gets sent to both recipients

The "updated mailbox email" event, however, is only sent to the server admin.

This happens when I (as root) edit a user's password for a particular erver.

If the user themselves edit the password, it's even more broken; not emailing anyone, despite notifications on-change being enabled.

Also, when I (as root) set the server owner's password to something new, NO email is sent out to anyone.

Basically lots of tiny bugs with the new email password/updated email password features.