Trade OnItemSplit hook

        void OnItemSplit(Item item, int amount)
        {
            if (item.GetOwnerPlayer() is BasePlayer)
            {
                OnlinePlayer onlinePlayer;
                if (onlinePlayers.TryGetValue(item.GetOwnerPlayer(), out onlinePlayer) && onlinePlayer.Trade != null)
                {
                    OpenTrade t = onlinePlayers[item.GetOwnerPlayer()].Trade;

                    if (!t.complete)
                    {
                        t.ResetAcceptance();

                        if (t.IsValid())
                        {
                            NextTick(() => ShowTrades(t, "Trade: Pending"));
                        }
                        else
                        {
                            TradeCloseBoxes(t);
                        }
                    }
                }
            }
        }