$ git clone -n https://src.fedoraproject.org/rpms/cfdg.git /var/lib/mock/f38-build-side-42-init-devel-970672-28812/root/chroot_tmpdir/scmroot/cfdg
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-970672-28812/root/chroot_tmpdir/scmroot/cfdg'...
$ git fetch origin eee809b9963d9a3942f011fbc9767ca4642ed9d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cfdg
 * [new ref]         eee809b9963d9a3942f011fbc9767ca4642ed9d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eee809b Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild