I had just sold Showman and bought Cola, and then DNA to replace the new slot, and then when I rolled, I got an extra Fool. The fool in the consumable area was a duplicate that I got while having another Fool in the consumable area, in case cards that appeared when Showman was around influences whether they count towards duplicates. You can see that I did not have Showman before rolling into this shop because all the shop slots are full and my joker slots are full.