$ git clone -n https://src.fedoraproject.org/rpms/goverlay.git /var/lib/mock/f38-build-side-42-init-devel-918906-28734/root/chroot_tmpdir/scmroot/goverlay
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-918906-28734/root/chroot_tmpdir/scmroot/goverlay'...
$ git fetch origin 349b9ada8787df3b092fdd98d0795c7f32f0ee1b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/goverlay
 * [new ref]         349b9ada8787df3b092fdd98d0795c7f32f0ee1b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 349b9ad Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild