Overflow auto bug after adding members to layout

[jumple]

In v10.0d I notice a small but annoying bug with overflow auto.

Here is an example to demonstrate: I create 3 HStacks with overflow auto and 2 ListGrids as members.

The first HStack has no problem since members are added inline during HStack declaration.

However the second HStack has 2 identical ListGrids added dynamically after HStack creation using setMembers and for some reason it show a vertical scrollbar and the grids' heights are inaccurate - bigger than they should be.

Interestingly the third HStack also had members added dynamically but overflow was set to "scroll" and the heights of grids are accurate.

I also added a button to resize second HStack to make it smaller at which point the vertical scrollbar disappears and grids' heights are adjusted properly

var listGrids = [];
for(var i=0; i<6; i++){
	listGrids[i] = isc["ListGrid"].create({
		autoFitData: "horizontal",
		fields: [{},{},{}]
	});
}
var hStack1 = isc["HStack"].create({
		width:300,
		overflow: "auto",
		height: 150,
		members:[listGrids[0], listGrids[1]]
	}),
	hStack2 = isc["HStack"].create({
		left: 310,
		width:300,
		height: 150,
		overflow: "auto"
	}),
	hStack3 = isc["HStack"].create({
		left: 620,
		width:300,
		height: 150,
		overflow: "scroll"
	});
hStack2.setMembers([listGrids[2], listGrids[3]]);
hStack3.setMembers([listGrids[4], listGrids[5]]);
isc["Button"].create({
	left: 310,
	top: 160,
	width: 300,
	height: 50,
	title: "Resize second HStack to make it smaller<br>Vertical scrollbar will go away",
	click: function(){
		hStack2.setHeight(120);
	}
});