$ git clone -n https://src.fedoraproject.org/rpms/python-statsmodels.git /var/lib/mock/f39-build-1948542-43206/root/chroot_tmpdir/scmroot/python-statsmodels
Cloning into '/var/lib/mock/f39-build-1948542-43206/root/chroot_tmpdir/scmroot/python-statsmodels'...
$ git fetch origin afb95c6afd2f6ae3be305c4dc55bed022918153d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-statsmodels
 * [new ref]         afb95c6afd2f6ae3be305c4dc55bed022918153d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afb95c6 Use cython < 3