Creating user on first login through Customer Portal shouldn't count against the JIRA license

There have been two previous tickets that reported this problem as a BUG and have been closed since it is expected behaviour. Many customers feel that even though Atlassian considers this expected behaviour, it is still INCORRECT behaviour. Please change this ticket to an SUGGESTION instead of a BUG and leave it open until the improvement has been made. We cannot use JSD until this is addressed.

Steps to reproduce

1. Add a Delegated LDAP directory to JIRA
2. Choose the option "Copy User on Login"
3. Logout from JIRA
4. Access the URL of the Customer Portal of one of your Service Desks to login
5. Login with a new user from LDAP (who is not in JIRA) to create the user on first login

Current behaviour

The user is added to the "jira-users" group and has the permission to access JIRA and all the information from Service Desk.

Expected behaviour

With the new agent-based license the user, should only be created as a "Customer" in Service Desk (specially if the option to restrict the access to the customer portal is enabled in SD).

This is not the expected behaviour because this also occurs when Service Desk is configured to restrict the access to the Customer Portal, and if the user tries to do his first login through the Custom Portal, his user has permission on all the system.