$ git clone -n https://src.fedoraproject.org/rpms/macromilter.git /var/lib/mock/f39-build-1532364-36223/root/chroot_tmpdir/scmroot/macromilter
Cloning into '/var/lib/mock/f39-build-1532364-36223/root/chroot_tmpdir/scmroot/macromilter'...
$ git fetch origin 637e049e5467059835c7424c07dc996462c679e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/macromilter
 * [new ref]         637e049e5467059835c7424c07dc996462c679e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 637e049 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild