Update tree node when children are loaded

This fixes the expand/collapse icon not being show when a tree
is autoexpanded, e.g. when refreshing the page

src/Umbraco.Web.UI.Client/src/common/services/tree.service.js

@@ -50,7 +50,7 @@ function treeService($q, treeResource, iconHelper, notificationsService, eventsS
                     parentNode.cssClasses = [];
                 }
                 parentNode.cssClasses.push("no-access");
-            }
+            }
 
             //create a method outside of the loop to return the parent - otherwise jshint blows up
             var funcParent = function() {
@@ -264,6 +264,11 @@ function treeService($q, treeResource, iconHelper, notificationsService, eventsS
                         args.node.expanded = true;
                         args.node.hasChildren = true;
                     }
+
+                    if (angular.isFunction(args.node.updateNodeData)) {
+                        args.node.updateNodeData(args.node);
+                    }
+
                     return data;
 
                 }, function(reason) {