$ git clone -n https://src.fedoraproject.org/rpms/gromacs.git /var/lib/mock/f40-build-791622-137674/root/chroot_tmpdir/scmroot/gromacs
Cloning into '/var/lib/mock/f40-build-791622-137674/root/chroot_tmpdir/scmroot/gromacs'...
$ git fetch origin c40e02bc2e5c28d0beaa594de11d6d7c831bf291:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gromacs
 * [new ref]         c40e02bc2e5c28d0beaa594de11d6d7c831bf291 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c40e02b Version bump to v2024 (bug #2261951)