Wanted to confirm if this was a bug or working as intended before reporting it as a bug;
If you enter the interface for the Blacksmith and click an empty slot (normally 100 gold to fill), if you have the 100 gold, it takes it immediately upon clicking the slot, even though it's then possible to decide you're not interested in filling it with any of the currently available items...but you won't get your money back if you cancel out, either. Eep.