If anonymous users are logged in during checkout they should be notified

When using the Login users when new customer accounts are created at checkout option, when the user checks out they see this message:

Your order is complete! Your order number is 6.

Thank you for shopping at Website. A new account has been created for you here that you may use to view your current order status. Login to your new account using the following information: Username: Test Password: password

The message here should say they have been logged in.
Otherwise they might not know and just navigate away from the site. Then someone else sits down and goes to the site and is already logged in as them. Bad.