[flexcoders] Disabling the Ctrl key copy action during a drag-n-drop event.

[lokesh2084]

I have a simple list (code below) that has drag and drop enabled. I
want to allow the user to reorder items in the list. But I do NOT want
them to be able to duplicate list items by holding down the CTRL key
during the drag drop. What would be the simplest way to handle this?

<mx:List dataProvider="{foo}"
        allowDragSelection="true" allowMultipleSelection="false"
        dragEnabled="true" dragMoveEnabled="true" dropEnabled="true">
</mx:List>

Thanks,
Lokesh