Email subject for sign_up and password_reset emails is identical: "Instructions for changing your password"

[greyskin]

The auth_service_spec.rb file seems to indicate that the email that will be sent upon submission of the auth sign_up form will have the subject

Your account has been created

However, on all of our websites, submission of the auth sign_up form results in an email with the subject

Instructions for changing your password

Should the subject be automatically applied? Or is this something we need to set somewhere. If so, where?