Minor class cleanup

src/engine/gameManager/ForgeManager.java

@@ -35,6 +35,11 @@ public enum ForgeManager implements Runnable {
 
                 WorkOrder workOrder = workOrders.take();
 
+                // Completed or canceled work orders are not re-enqueued
+
+                if (workOrder.runCanceled || workOrder.runCompleted)
+                    continue;
+
                 // Fulfill workOrder
 
                 for (int i = 0; i < workOrder.slotCount; ++i) {