$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Harness.git /var/lib/mock/f45-build-26680-618/root/chroot_tmpdir/scmroot/perl-Test-Harness
Cloning into '/var/lib/mock/f45-build-26680-618/root/chroot_tmpdir/scmroot/perl-Test-Harness'...
$ git fetch origin 317149ec6e60bcf051498264451062f2fdef4853:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Harness
 * [new ref]         317149ec6e60bcf051498264451062f2fdef4853 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 317149e Perl 5.44 re-rebuild of bootstrapped packages