$ git clone -n https://src.fedoraproject.org/rpms/perl-CPAN-Meta-YAML.git /var/lib/mock/f45-build-22015-589/root/chroot_tmpdir/scmroot/perl-CPAN-Meta-YAML
Cloning into '/var/lib/mock/f45-build-22015-589/root/chroot_tmpdir/scmroot/perl-CPAN-Meta-YAML'...
$ git fetch origin 9e4a2a70b80f06187247e5547ae4d217a08fcb77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CPAN-Meta-YAML
 * [new ref]         9e4a2a70b80f06187247e5547ae4d217a08fcb77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e4a2a7 Perl 5.44 re-rebuild of bootstrapped packages