Ensure initialization of the Hibernate association bags

- If uninitialized (e.g. by a size() call), then the new assocations added are queued for addition
 - These then become duplicated within the session (not the DB) and appear as duplicate associations during integrity checking
Fixed test


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2741 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/domain/hibernate/HibernateNodeTest.java

@@ -263,6 +263,7 @@ public class HibernateNodeTest extends BaseSpringTest
         // make a content node
         Node contentNode = new NodeImpl();
         contentNode.setStore(store);
+        contentNode.setUuid(GUID.generate());
         contentNode.setTypeQName(ContentModel.TYPE_CONTENT);
         Serializable contentNodeId = getSession().save(contentNode);