DataGrid.selectedIndex memory leak - actionscript-3

Question

I have noticed a memory leak in a DataGrid, in case I do not select an item, I am able to GC my dataGrid, if there was anything selected then dataGrid cause memory leak...
here is the simpliest example:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
minWidth="955" minHeight="600">
<fx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.collections.ArrayList;
import spark.components.gridClasses.GridColumn;
[Bindable]
private var columns:ArrayList = new ArrayList;
[Bindable]
private var dataProvider:ArrayCollection = new ArrayCollection;
private function onCreationComplete():void
{
dataProvider.addItem({id:1});
var column:GridColumn = new GridColumn;
column.dataField = id;
columns.addItem(column);
container.selectedIndex = 0;
}
private function gotoOne():void
{
currentState = one;
}
private function gotoTwo():void
{
columns = null;
currentState = two;
}
]]>
</fx:Script>
<s:states>
<s:State name="one"/>
<s:State name="two"/>
</s:states>
<s:Button click="gotoOne()" label="one"/>
<s:Button click="gotoTwo()" label="two" left="150"/>
<s:DataGrid id="container" top="30" includeIn="one" itemDestructionPolicy="auto"
creationComplete="onCreationComplete()" columns="{columns}"
dataProvider="{dataProvider}"/>
</s:Application>
if you comment out line "container.selectedIndex = 0;" DataGrid gets GCed nicely.
Any ideas how to GC DataGrid with selected item?
I am using flex 4.6.0

Answer 1

It isn't a memory leak, it is cycle of a live item.
onCreationComplete is called when you finish render and display datagrid on the scene, you must add the item on click of the grid( selectedItem event).