Label not truncated when wireframe RadioButton or CheckBox is too narrow

Steps to reproduce:
1. Compile the following code using the wireframe theme :

<?xml version="1.0"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark">
<s:controlBarContent>
<s:Label id="sdkVer" initialize="sdkVer.text = mx_internal::VERSION;" />
<s:HSlider id="sldr" minimum="100" maximum="400" value="400" width="300" />
</s:controlBarContent>

<s:VGroup>
<s:Button label="[Spark Button] The quick brown fox jumps over the lazy dog" width="

{sldr.value}" />
<s:CheckBox label="[Spark CheckBox] The quick brown fox jumps over the lazy dog" width="{sldr.value}

" />
<s:RadioButton label="[Spark RadioButton] The quick brown fox jumps over the lazy dog" width="

{sldr.value}

" />
</s:VGroup>

</s:Application>

2. Drag the slider to the left

Actual Results:
CheckBox and RadioButton labels are never truncated or clipped

Expected Results:
Labels should be truncated with "...", just like the Button (and just like Spark-skinned CheckBox & RadioButton)

Workaround (if any):
None without reskinning