Ticket #3187: t3187_fix_undefined_property_traderoute_trompetin17.patch

binaries/data/mods/public/simulation/helpers/Commands.js

@@ -589 +589 @@
     },
 
     "setup-trade-route": function(player, cmd, data)
     {
         GetFormationUnitAIs(data.entities, player).forEach(function(cmpUnitAI) {
-            cmpUnitAI.SetupTradeRoute(cmd.target, cmd.source, cmd.route, cmd.queued);
+            // fixes #3187
+            let source = cmd.source;
+            let route = cmd.route
+            cmpUnitAI.SetupTradeRoute(cmd.target, source, route, cmd.queued);
         });
     },
 
     "select-required-goods": function(player, cmd, data)
     {