Log, Files pane: Show directory even when it has no changed files

Currently, the "If selected, the directories will be shown" only shows directories that contain changes unless the option to show unchanged files is also selected. Sometimes it is desirable to show the full directory structure, but only show changed files in the file list. 

Request is to either always show directories when the "show directories" option is selected even if they don't contain changed files, or to add a separate option to show unchanged directories or show unchanged files.