WedgeStackChart refreshing data issue.

[GoogleCodeExporter]

What steps will reproduce the problem?
I am using the axiis library fit for flex 4 which is created by viatropos.

I want to use this component to dynamically display data after I do some 
filtering stuff of my dataset. (Something like issue 24 
http://code.google.com/p/axiis/issues/detail?id=24 but not fix because I use 
Flex SDK 4).

here is the dataset.

protected function button1_clickHandler(event:MouseEvent):void
            {
                var temp:ArrayCollection = new ArrayCollection();
                var element:ArrayCollection;
                var obj:Object = new Object();
                var _obj:Object = new Object();
                var sum:int;
                for(var i:int=0;i<9;i++)
                {
                    sum = 0;
                    obj = new Object();
                    obj.name = "parent"+i;
                    element = new ArrayCollection();
                    for(var j:int=1;j<20;j++)
                    {
                        _obj = new Object();
                        _obj.category = "element"+i+j;
                        _obj.count = j;
                        sum += j;
                        element.addItem(_obj);
                    }
                    obj.sum = sum;
                    obj.element = element;
                    temp.addItem(obj);
                }
                dataProvider = temp;
                dc.invalidateDisplayList();
            }

I added one button, and by clicking button, we re-create the dataset and 
refresh the wedgeStackChart, but when the chart goes to the last "parent", some 
of the "element" do not displayed at the end of "innerStack".

I update the GeometryRepeater.as and BaseLayout.as via r388 but the view errors 
are still there.  

What version of the product are you using? On what operating system?
The version of Axiis is from http://github.com/viatropos/axiis which is made by 
viatrops. 

Win7-32bit, Flash builder + Flex SDK 4.1

Please provide any additional information below.
I will realy appreciate for helping me.
Thanks,
Jian

Original issue reported on code.google.com by kulmb...@gmail.com on 2 Jul 2010 at 4:52