$ git clone -n https://src.fedoraproject.org/rpms/liblouis.git /var/lib/mock/f40-build-2200226-51764/root/chroot_tmpdir/scmroot/liblouis
Cloning into '/var/lib/mock/f40-build-2200226-51764/root/chroot_tmpdir/scmroot/liblouis'...
$ git fetch origin 7e81862781c7b978798f7f9cff94524c4e3629d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liblouis
 * [new ref]         7e81862781c7b978798f7f9cff94524c4e3629d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e81862 Minor spec file cleanups