I am clicking on Choice and the drop-down appears. I am pressing the mouse on one of the items, dragging the mouse and releasing it outside the drop-down. I am surprised to see 2 ItemEvents being triggered for the item where I pressed the mouse.

This is reproducible only on Win32 atleast since Tiger-FCS and not reproducible on XToolkit.

I have attached a sample test. Execute the sample test. Click on Choice. Press the mouse on one of the items in the drop-down, drag the mouse out of drop-down and release it. If you see 2 ItemEvents being triggered on the console, the bug is reproduced.