$ git clone -n git://pkgs.fedoraproject.org/rpms/dnssec-tools /var/lib/mock/f29-build-6847-1687/root/thebuilddir/tmp/scmroot/dnssec-tools
Cloning into '/var/lib/mock/f29-build-6847-1687/root/thebuilddir/tmp/scmroot/dnssec-tools'...
$ git reset --hard ddb56ee0b7ccfd4bbf463aadae70ac7ad834394d
HEAD is now at ddb56ee Perl 5.24 rebuild