Please describe the problem:
If you open a file chooser, and browse a couple of levels down to a directory, then click on one of the buttons for a higher-level directory at the top of the file chooser, it displays the higher-level directory.  But if you *double-click*, it shows the higher-level directory with all the entries inserted twice!  i.e. the first time you click on the button, it shows the directory; the second time (even though the directory button is already in pressed state) it inserts all the directory entries a second time in the list view.

Steps to reproduce:


Actual results:


Expected results:


Does this happen every time?
Every time.


Other information: