$ git clone -n https://src.fedoraproject.org/rpms/nmh.git /var/lib/mock/f40-build-797445-141349/root/chroot_tmpdir/scmroot/nmh
Cloning into '/var/lib/mock/f40-build-797445-141349/root/chroot_tmpdir/scmroot/nmh'...
$ git fetch origin b93d441f9f15ee0db78e29ce3a1768ae78217b02:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nmh
 * [new ref]         b93d441f9f15ee0db78e29ce3a1768ae78217b02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b93d441 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild