Fix value of items bought from Wirt's shop

Source/stores.cpp

@@ -1708,11 +1708,11 @@ void BoyEnter()
 	StartStore(TalkID::Gossip);
 }
 
-void BoyBuyItem(Item &item)
+void BoyBuyItem(Item &item, int itemPrice)
 {
-	TakePlrsMoney(item._iIvalue);
+	TakePlrsMoney(itemPrice);
 	StoreAutoPlace(item, true);
-	BoyItem.clear();
+	item.clear();
 	OldActiveStore = TalkID::Boy;
 	CalcPlrInv(*MyPlayer, true);
 	OldTextLine = 12;
@@ -1836,7 +1836,7 @@ void ConfirmEnter(Item &item)
 			WitchRechargeItem(item._iIvalue);
 			break;
 		case TalkID::BoyBuy:
-			BoyBuyItem(item);
+			BoyBuyItem(BoyItem, item._iIvalue);
 			break;
 		case TalkID::HealerBuy:
 			HealerBuyItem(item);