$ git clone -n https://src.fedoraproject.org/rpms/R-hunspell.git /var/lib/mock/f41-build-side-1-2630801-25618/root/chroot_tmpdir/scmroot/R-hunspell
Cloning into '/var/lib/mock/f41-build-side-1-2630801-25618/root/chroot_tmpdir/scmroot/R-hunspell'...
$ git fetch origin c81b310c275b98ee1665ada01b5ac61951784a0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-hunspell
 * [new ref]         c81b310c275b98ee1665ada01b5ac61951784a0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c81b310 convert license to SPDX