Adobe Air2rc1 Drag List Item to Trash or RecycleBin Has Different Behavior

<s:List dragEnabled="true" dragMoveEnabled="true">
  <s:dataProvider>
    <s:ArrayCollection>
      <fx:Object label="Item one"/>
      <fx:Object label="Item two"/>
      <fx:Object label="Item three"/>
    </s:ArrayCollection>
  </s:dataProvider>
</s:List>

I think this is a bug. But I have no solution.