If there are two separate conductors in the breakers terminals then this time the home inspector is likely to be correct. Double barrel lugs on breakers are a special order item. At one time you could buy adapter lugs that had a round tail that you placed in single lug and had two separate lugs in the body of the lug. I do not know if they are still available.
"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison