$ git clone -n https://src.fedoraproject.org/rpms/fedora-autofirstboot.git /var/lib/mock/f39-build-1559839-37326/root/chroot_tmpdir/scmroot/fedora-autofirstboot
Cloning into '/var/lib/mock/f39-build-1559839-37326/root/chroot_tmpdir/scmroot/fedora-autofirstboot'...
$ git fetch origin c8481007154fd716b36f5f60a01fe42e432b14b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedora-autofirstboot
 * [new ref]         c8481007154fd716b36f5f60a01fe42e432b14b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c848100 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild