$ git clone -n https://src.fedoraproject.org/rpms/nagios.git /var/lib/mock/f31-build-57133-28301/root/thebuilddir/tmp/scmroot/nagios
Cloning into '/var/lib/mock/f31-build-57133-28301/root/thebuilddir/tmp/scmroot/nagios'...
$ git reset --hard 177f155b37265d6dfd8318c96a1196f5f7394521
HEAD is now at 177f155 Perl 5.30 rebuild