Autocalculation of price does not include price set that don't display amount

We are using a price set field with a $1 price to allow participants to pay an arbitrary fee amount (ie extra donation, tip, etc.) This is a common scenario for us.

We un-check the "Display Amount?" field so it does not show $1 (otherwise it would look strange)

The automatic calculation on the event page does not include the price but should. The total is recorded correctly. It is shown correctly on the subsequent confirmation and receipt page.

The problem is that during registration, the user will see a total that does not include the full amount and may think its an error before going to the confirmation page where it is included.