Dragging and dropping a file (for instance from another folder) into the desktop doesn't leave the file icon where it's dropped, but at the beginning of the list (near the waste basket), forcing the user to move it afterwards. I understand the icon should be placed where dropped.
It seems I filed this erroneously as a duplicate of #12627, instead of modifying that bug's comment. *** This bug has been marked as a duplicate of bug 12627 ***