Problems with Collapsible bar of BorderLayout

[baradas]

Hi,
I am facing some problems when I set the Split property to true in a BorderLayout.

        
    protected void onRender(Element parent, int pos) {
        super.onRender(parent, pos);
        setLayout(new BorderLayout());
        leftWidget= new ContentPanel();
        rightWidget = new VerticalPanel();

        BorderLayoutData leftWidgetLayout = new BorderLayoutData(
                LayoutRegion.WEST, 360);
        leftWidgetLayout.setCollapsible(true);
        leftWidgetLayout.setSplit(true);

        BorderLayoutData rightWidgetLayout = new BorderLayoutData(
                LayoutRegion.CENTER);
        rightWidgetLayout.setMargins(new Margins(0, 5, 0, 5));

        add(leftWidget, leftWidgetLayout);
        add(rightWidget, rightWidgetLayout);
    }

The split button is rendered on the left side. See associated image for what I mean.

Due to this if I also set the "collapsible" property to "true" for ContentPanel on left then it is also rendered at the same place as the collapsible image.

GXT - 1.0
GWT-1.5.0

Regards
baradas