Inner glow + clipping mask = no mouse events

Steps to reproduce:
1. Put this in an app and run it

<s:Group>
<s:filters>
<s:GlowFilter blurX="15" blurY="15" quality="2" strength="2" color="#AF3131" inner="true"/>
</s:filters>
<s:mask>
<s:Group>
<s:Ellipse width="100" height="100">
<s:fill>
<s:SolidColor/>
</s:fill>
</s:Ellipse>
</s:Group>
</s:mask>
<s:Button x="0" y="0" label="Button"/>
</s:Group>

2. Click on the button

Actual Results:
Button doesn't react to mouse.

Expected Results:
Reacts to mouse.

Workaround (if any):