$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-CPAN-Meta-YAML.git /var/lib/mock/f45-build-26572-618/root/chroot_tmpdir/scmroot/perl-Test-CPAN-Meta-YAML
Cloning into '/var/lib/mock/f45-build-26572-618/root/chroot_tmpdir/scmroot/perl-Test-CPAN-Meta-YAML'...
$ git fetch origin 64d353c80778472ecf319b008ce6b83fb387b4cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-CPAN-Meta-YAML
 * [new ref]         64d353c80778472ecf319b008ce6b83fb387b4cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64d353c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild