GroupedList: sticky header disappears too early when scrolling up if paddingTop > 0

[subdan]

I have a GroupedList with custom layout:

var listLayout:VerticalLayout = new VerticalLayout();
listLayout.horizontalAlign = HorizontalAlign.JUSTIFY;
listLayout.paddingTop = listLayout.paddingBottom = 20;
listLayout.hasVariableItemDimensions = true;
listLayout.gap = 20;
listLayout.stickyHeader = true;
list.layout = listLayout;

When I scroll the List Header Renderer dissapears before it will be outside the screen.

[joshtynjala]

Confirmed. Thanks!