Index: lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml
===================================================================
diff -u -r7f203b0b0a2e56896f7eee5367b52d1ec4db483e -re8053f33744ce742d1fc76e1bc6c0852f5e95de3
--- lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml	(.../Activity.hbm.xml)	(revision 7f203b0b0a2e56896f7eee5367b52d1ec4db483e)
+++ lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml	(.../Activity.hbm.xml)	(revision e8053f33744ce742d1fc76e1bc6c0852f5e95de3)
@@ -198,7 +198,7 @@
 	    <meta attribute="scope-class" inherit="false">public abstract</meta>
 	    
 	    <!-- bi-directional one-to-many association to Activity-->
-	    <set name="activities" lazy="false" inverse="true" cascade="none" >
+	    <set name="activities" lazy="false" inverse="true" cascade="none" sort="org.lamsfoundation.lams.learningdesign.ActivityOrderComparator" >
     		<meta attribute="field-description">@hibernate.set lazy="false" inverse="true" cascade="none"
     										@hibernate.collection-key column="parent_activity_id" 
     										@hibernate.collection-one-to-many class="org.lamsfoundation.lams.learningdesign.Activity"