$ git clone -n https://src.fedoraproject.org/rpms/python-pyrate-limiter.git /var/lib/mock/f40-build-2214244-52368/root/chroot_tmpdir/scmroot/python-pyrate-limiter
Cloning into '/var/lib/mock/f40-build-2214244-52368/root/chroot_tmpdir/scmroot/python-pyrate-limiter'...
$ git fetch origin b31cb1ffc68091f691103f053df959ccb1aaaaec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyrate-limiter
 * [new ref]         b31cb1ffc68091f691103f053df959ccb1aaaaec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b31cb1f 3.1.1