Refiner's Bargain and Sulphite

Bug report 69,198,721

Refiner's Bargain says sulphite found in your maps is granted as a random ore at 15% of the value. It works fine with Sulphite chests/veins, but does not work with the sulphite given by sulphite-hoarding monsters (Guarded Hoards) or Sulphite Infusion.