petersulyok/smfc v6.4.1 on GitHub

An apt upgrade of the DEB package stopped the smfc service and never started it again. debian/rules passed dh_installsystemd --no-start, and that flag alone switches off the default --restart-after-upgrade: the package got a stop in preinst and no restart in postinst. Both flags are passed now, so an upgrade issues a try-restart - a running service comes back, a stopped one stays stopped - and a fresh install still enables the service without starting it. Reported by @russmo in issue #122.
A fresh install of the RPM package did not enable the smfc service, so it did not start at the next boot. %systemd_post runs systemctl preset, and with no preset file the catch-all rule of the distribution (disable *) matched. The package ships /usr/lib/systemd/system-preset/50-smfc.preset with enable smfc.service now. The install still does not start the service. The DEB package was not affected.