I'm using r9692 (was 9690 but I updated to ensure this wasn't fixed) and the "loot the hermit" option shows he has 16,777,215 of everything available, except for -1 ten-leaf clover.
That seems like a bug yes, but you are probably better off using the new "coinmaster" interface anyway, available three options belowe the "loot the hermit" option where the Hermit is also available.
Well, I got the same number of items but I had nowhere near enough that amount of meat in order to gather the worthless items to get those (I had ~30k meat, in HC) meaning that the number shown doesn't represent what I can actually get.