Open file name
List files of type
When using the mouse, choosing the Open file drop-down list's control arrow expands the list, and selecting an item from the list rolls up the list.
However, when using the key shortcut <Alt+CurDn> to open the drop-down list, then <CurDn> and <Enter> to select an item, the expanded list is not rolled up, and it obscures the items in the underlying window.
(click on image for larger)
