Ticket #3838: fixMarket.patch

binaries/data/mods/public/simulation/components/UnitAI.js

@@ -5244 +5244 @@
 
     let cmpTrader = Engine.QueryInterface(this.entity, IID_Trader);
     cmpTrader.PerformTrade(currentMarket);
-    if (!cmpTrader.GetGoods().amount.traderGain)
+    let amount = cmpTrader.GetGoods().amount;
+    if (!amount || !amount.traderGain)
     {
         this.StopTrading();
         return;