=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/dataset/CompleteDataSetRegistration.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/dataset/CompleteDataSetRegistration.java	2014-10-16 06:17:19 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/dataset/CompleteDataSetRegistration.java	2014-11-10 17:02:36 +0000
@@ -202,6 +202,7 @@
     }
 
     @JsonProperty
+    @JsonSerialize( as = BaseIdentifiableObject.class )
     @JacksonXmlProperty( namespace = DxfNamespaces.DXF_2_0 )
     public Period getPeriod()
     {
@@ -226,6 +227,7 @@
         this.source = source;
     }
 
+    @JsonProperty
     @JsonSerialize( as = BaseIdentifiableObject.class )
     @JacksonXmlProperty( namespace = DxfNamespaces.DXF_2_0 )
     public DataElementCategoryOptionCombo getAttributeOptionCombo()
@@ -262,8 +264,6 @@
         this.storedBy = storedBy;
     }
 
-    @JsonProperty
-    @JacksonXmlProperty( namespace = DxfNamespaces.DXF_2_0 )
     public String getPeriodName()
     {
         return periodName;

=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/dataapproval/hibernate/HibernateDataApprovalStore.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/dataapproval/hibernate/HibernateDataApprovalStore.java	2014-11-10 11:08:53 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/dataapproval/hibernate/HibernateDataApprovalStore.java	2014-11-10 17:02:36 +0000
@@ -258,7 +258,7 @@
 
         if ( categoryComboIds.isEmpty() )
         {
-            log.warn( "No dataset categorycombos to check for approval, user " + ( user == null ? "(null)" : user.getUsername() ) + " datasetIds " + dataSetIds );
+            log.debug( "No dataset categorycombos to check for approval, user " + ( user == null ? "(null)" : user.getUsername() ) + " datasetIds " + dataSetIds );
 
             return new ArrayList<>();
         }