If you change the mailadress into one you don’t own, you will get a new password mailed to that new address.
If you didn’t mean to change it, and found out that you inadvertently typed into that box as well, ( which happens with those multiple pop_in_you_face_when_done_loading frames ), you get a line saying that your new password has been sent to your mailbox.
By pressing i could see that it was indeed the mailaddress that had changed, not the password.
Without that new password you can’t reverse it, hence this post.