Using "owner /tmp/{,.}gnome_desktop_thumbnail.* w," and reloading the profile doesn't work. Using "owner /tmp/{,.}gnome-desktop-thumbnailer.* w," and reloading the profile works.
Using "owner /tmp/{, .}gnome_ desktop_ thumbnail. * w," and reloading the profile doesn't work. .}gnome- desktop- thumbnailer. * w," and reloading the profile works.
Using "owner /tmp/{,