Fix for #167 - Ebean try to do update child nodes instead of inserting them on cascading save resulting in OptimisticLockException

src/test/java/com/avaje/tests/insert/TestInsertOnStringKey.java

@@ -0,0 +1,40 @@
+package com.avaje.tests.insert;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.tests.model.orderentity.OrderEntity;
+import com.avaje.tests.model.orderentity.OrderItemEntity;
+
+public class TestInsertOnStringKey extends BaseTestCase {
+
+  @Test
+  public void test() {
+    
+    
+    OrderEntity orderEntity = new OrderEntity();
+    orderEntity.setId("anyOrderId");
+    
+    OrderItemEntity orderItemEntity = new OrderItemEntity();
+    orderItemEntity.setId("anyOrderItemId");
+    orderItemEntity.setVariantId("anyVariantId");
+    orderItemEntity.setAmount(BigDecimal.ONE);
+    
+    orderEntity.setItems(toList(orderItemEntity));
+    
+    Ebean.save(orderEntity);
+    
+  }
+
+  private List<OrderItemEntity> toList(OrderItemEntity orderItemEntity) {
+    List<OrderItemEntity> list = new ArrayList<OrderItemEntity>();
+    list.add(orderItemEntity);
+    return list;
+  }
+  
+}