$ git clone -n https://src.fedoraproject.org/rpms/golang-github-safchain-ethtool.git /var/lib/mock/f45-build-12426-442/root/chroot_tmpdir/scmroot/golang-github-safchain-ethtool
Cloning into '/var/lib/mock/f45-build-12426-442/root/chroot_tmpdir/scmroot/golang-github-safchain-ethtool'...
$ git fetch origin 6c1c57f3812873febc511de638a4b98f9d584ec1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-safchain-ethtool
 * [new ref]         6c1c57f3812873febc511de638a4b98f9d584ec1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c1c57f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild