$ git clone -n https://src.fedoraproject.org/rpms/lammps.git /var/lib/mock/f39-build-1919695-42944/root/chroot_tmpdir/scmroot/lammps
Cloning into '/var/lib/mock/f39-build-1919695-42944/root/chroot_tmpdir/scmroot/lammps'...
$ git fetch origin a7d6cfa08a66ac872b591abc80e97df151b20b4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lammps
 * [new ref]         a7d6cfa08a66ac872b591abc80e97df151b20b4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7d6cfa Version bump to 20230802.1