Minor bug: Items dont restock in the default vendor for the Muster barracks

[Softie]

The gold vendor for the Muster has a limited number of items.  We have a number of archers, crossbowmen and slingers in the muster, it is a very minor thing, but convenient if they replenished ammunition when sold, right now if you buy one stack they run out.

[Talir]

Fixed.