At least for now, nautilus' file monitor is blind to certain metadata updates: https://git.gnome.org/browse/nautilus/tree/src/nautilus-mime-actions.c#n1537 So in order for the changes in the previous patch to take effect immediately, we need to force nautilus to reload the file info. Achieve this by updating the access time of the newly copied file after marking it as trusted. https://bugzilla.gnome.org/show_bug.cgi?id=781596