$ git clone -n https://src.fedoraproject.org/rpms/nagios-plugins-systemd.git /var/lib/mock/f40-build-763301-122467/root/chroot_tmpdir/scmroot/nagios-plugins-systemd
Cloning into '/var/lib/mock/f40-build-763301-122467/root/chroot_tmpdir/scmroot/nagios-plugins-systemd'...
$ git fetch origin 7483b26b950e66439666dca20133cbb705bba8b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nagios-plugins-systemd
 * [new ref]         7483b26b950e66439666dca20133cbb705bba8b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7483b26 Update to 3.0.0