sometimes not work when tree-mode is array

[SuperGod]

sometimes it not work when tree-mode is array

when I use it like:

// treeData is the tree-model
$scope.treeData = [];
var item={Name: "aaa", children:[]}
$scope.treeData.push(item)
// then do something with a call back function with item's children

but sometimes the tree can't refresh

I add "deepinWatch" argument in the $watch function of angular-tree-control, then it works, code is like:

                        scope.$watch("treeModel", function updateNodeOnRootScope(newValue) {
                            if (angular.isArray(newValue)) {
                                if (angular.isDefined(scope.node) && angular.equals(scope.node[scope.options.nodeChildren], newValue))
                                    return;
                                scope.node = {};
                                scope.synteticRoot = scope.node;
                                scope.node[scope.options.nodeChildren] = newValue;
                            }
                            else {
                                if (angular.equals(scope.node, newValue))
                                    return;
                                scope.node = newValue;
                            }
                        }, true);