Comment # 80 on bug 1055834 from Dr. Werner Fink

I really wonder why in /usr/lib/udev/rules.d/90-vconsole.rules does not use

   RUN+="/usr/bin/systemctl restart systemd-vconsole-setup.service"

instead the systemd-vconsole-setup binary its self.  (IMHO) The systemctl
approach would at least fulfill the dependencies like those given in
kbdsettings.service