verticalGap for RadioButton and CheckBox does not display as expected

Steps to reproduce:
1. Put some RadioButtons or CheckBoxes in a VBox
2. Compare vertical gap from 2.0.1 to M3 B2
3. Set verticalGap to 0 to confirm it is not a difference in default value and try again

<mx:VBox backgroundColor="0xFFFFFF" verticalGap="0">
<mx:RadioButton label="Item 1"/>
<mx:RadioButton label="Item 2"/>
<mx:RadioButton label="Item 3"/>
<mx:RadioButton label="Item 4"/>
<mx:RadioButton label="Item 5"/>
<mx:RadioButton label="Item 6"/>
<mx:RadioButton label="Item 7"/>
<mx:RadioButton label="Item 8"/>
<mx:RadioButton label="Item 9"/>
<mx:RadioButton label="Item 10"/>
<mx:RadioButton label="Item 11"/>
</mx:VBox>
Actual Results:

Expected Results:

Workaround (if any):