I'm not sure if they've fixed it or not, but a while back I noticed a bug regarding vendor repairs of equipment and henchmen (possibly companions and fellow SH, too, but I didn't confirm). I gave the necessary gold to my henchmen, and switched to them when trading to have their equipment repaired (this was before I added blacksmithing to my main SH). Their equipment was repaired, but the gold was deducted from the primary trader's supply, not from the henchmen.
Oddly, if they didn't have enough gold, then it wouldn't permit the repair; but when the repair was performed, it wouldn't pull from their supply, but rather from the one who initiated the trade.
I should do some more testing and see if this is still the case.
