=== modified file 'dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ajax/jsonOrganisationUnitTree.vm'
--- dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ajax/jsonOrganisationUnitTree.vm	2012-10-31 09:36:23 +0000
+++ dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ajax/jsonOrganisationUnitTree.vm	2013-11-26 12:30:24 +0000
@@ -1,5 +1,6 @@
 {
 "version":"$!encoder.jsonEncode( $version )"
+,"username":"$!encoder.jsonEncode( $username )"
 ,"realRoot":$realRoot
 ,"roots": [ #foreach( $root in $rootOrganisationUnits )$root.id#if( $velocityCount < $rootOrganisationUnits.size() ),#end#end ]
 #if( ! $versionOnly )

=== modified file 'dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ajax/jsonOrganisationUnitTreePartial.vm'
--- dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ajax/jsonOrganisationUnitTreePartial.vm	2012-06-29 15:11:05 +0000
+++ dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ajax/jsonOrganisationUnitTreePartial.vm	2013-11-26 12:30:24 +0000
@@ -1,4 +1,7 @@
-{"organisationUnits": {
+{
+"version":"$!encoder.jsonEncode( $version )"
+,"username":"$!encoder.jsonEncode( $username )"
+,"organisationUnits": {
 #foreach( $unit in $organisationUnits )
 "${unit.id}":{"id":${unit.id},"n":"$!encoder.jsonEncode( ${unit.name} )",#if( $unit.parent )"pid":${unit.parent.id},#end"c":[#foreach( $child in $unit.sortedChildren )${child.id}#if( $velocityCount < $unit.children.size() ),#end#end]}
 #if( $velocityCount < $organisationUnits.size() ),#end#end

=== modified file 'dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ouwt/ouwt.js'
--- dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ouwt/ouwt.js	2013-09-09 11:23:06 +0000
+++ dhis-2/dhis-web/dhis-web-commons-resources/src/main/webapp/dhis-web-commons/ouwt/ouwt.js	2013-11-26 12:30:24 +0000
@@ -29,6 +29,7 @@
 var OU_PARTIAL_KEY = "ouPartial";
 var OU_ROOTS_KEY = "ouRoots";
 var OU_VERSION_KEY = "ouVersion";
+var OU_USERNAME_KEY = "ouUsername";
 var OU_SELECTED_KEY = "ouSelected";
 
 dhis2.ou.store = new dhis2.storage.Store( {
@@ -135,6 +136,18 @@
         localStorage.removeItem( OU_VERSION_KEY );
     };
 
+    this.getUsername = function() {
+        return localStorage[ OU_USERNAME_KEY ] ? localStorage[ OU_USERNAME_KEY ] : "";
+    };
+
+    this.setUsername = function( username ) {
+        localStorage[ OU_USERNAME_KEY ] = username;
+    };
+
+    this.clearUsername = function() {
+        localStorage.removeItem( OU_USERNAME_KEY );
+    };
+
     this.getAllOrganisationUnits = function() {
         var def = $.Deferred();
 
@@ -149,7 +162,18 @@
     this.setOrganisationUnits = function( ous ) {
         $.extend( organisationUnits, ous );
         ous = ous ? _.values( ous ) : [];
-        return dhis2.ou.store.setAll( OU_KEY, ous );
+
+        var def = $.Deferred();
+
+        // clear out old tree
+        dhis2.ou.store.clear(OU_KEY).always(function() {
+          // set new tree
+          dhis2.ou.store.setAll(OU_KEY, ous).always(function() { 
+            def.resolve();
+          });
+        });
+
+        return def.promise();
     };
 
     this.getOrganisationUnit = function( id ) {
@@ -239,14 +263,19 @@
             } );
         }
 
-        function update_required( remoteVersion, remoteRoots ) {
+        function update_required( remoteVersion, remoteRoots, remoteUsername ) {
             var localVersion = selection.getVersion();
+            var localUsername = selection.getUsername();
             var localRoots = selection.getRoots();
 
             if ( localVersion != remoteVersion ) {
                 return true;
             }
 
+            if( localUsername != remoteUsername ) {
+              return true;
+            }
+
             if ( localRoots == null || localRoots.length == 0 ) {
                 return true;
             }
@@ -271,13 +300,14 @@
             if ( data.indexOf( "<!DOCTYPE" ) != 0 ) {
                 data = JSON.parse( data );
                 realRoot = data.realRoot;
-                should_update = update_required( data.version, data.roots );
+                should_update = update_required( data.version, data.roots, data.username );
             }
         } ).always( function() {
             if( should_update ) {
                 selection.ajaxOrganisationUnits( false ).done(function( data ) {
                     selection.setRoots( data.roots );
                     selection.setVersion( data.version );
+                    selection.setUsername( data.username );
                     selection.setOrganisationUnits( data.organisationUnits ).done(function() {
                         sync_and_reload();
                         $( "#orgUnitTree" ).trigger( "ouwtLoaded" );

=== modified file 'dhis-2/dhis-web/dhis-web-commons/src/main/java/org/hisp/dhis/commons/action/GetOrganisationUnitTreeAction.java'
--- dhis-2/dhis-web/dhis-web-commons/src/main/java/org/hisp/dhis/commons/action/GetOrganisationUnitTreeAction.java	2013-11-19 11:41:34 +0000
+++ dhis-2/dhis-web/dhis-web-commons/src/main/java/org/hisp/dhis/commons/action/GetOrganisationUnitTreeAction.java	2013-11-26 12:30:24 +0000
@@ -110,6 +110,13 @@
         return version;
     }
 
+    private String username;
+
+    public String getUsername()
+    {
+        return username;
+    }
+
     private boolean versionOnly;
 
     public void setVersionOnly( Boolean versionOnly )
@@ -262,6 +269,8 @@
 
         version = getVersionString();
 
+        username = currentUserService.getCurrentUsername();
+
         return SUCCESS;
     }