$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTime-Format-Epoch.git /var/lib/mock/f45-build-22953-595/root/chroot_tmpdir/scmroot/perl-DateTime-Format-Epoch
Cloning into '/var/lib/mock/f45-build-22953-595/root/chroot_tmpdir/scmroot/perl-DateTime-Format-Epoch'...
$ git fetch origin 8bbaccdcc38146067044efdc951101226fdddaa5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTime-Format-Epoch
 * [new ref]         8bbaccdcc38146067044efdc951101226fdddaa5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8bbaccd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild