$ git clone -n https://src.fedoraproject.org/rpms/perl-Menlo-Legacy.git /var/lib/mock/f45-build-24771-606/root/chroot_tmpdir/scmroot/perl-Menlo-Legacy
Cloning into '/var/lib/mock/f45-build-24771-606/root/chroot_tmpdir/scmroot/perl-Menlo-Legacy'...
$ git fetch origin efffef84fa7f7cfea40bf3eb73e03db25fcd2ecd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Menlo-Legacy
 * [new ref]         efffef84fa7f7cfea40bf3eb73e03db25fcd2ecd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efffef8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild