$ git clone -n https://src.fedoraproject.org/rpms/python-patsy.git /var/lib/mock/f40-build-2228259-53074/root/chroot_tmpdir/scmroot/python-patsy
Cloning into '/var/lib/mock/f40-build-2228259-53074/root/chroot_tmpdir/scmroot/python-patsy'...
$ git fetch origin 537cd3f3d876fa5f0381290b0ca299e2daac6b07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-patsy
 * [new ref]         537cd3f3d876fa5f0381290b0ca299e2daac6b07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 537cd3f Update to upstream release 0.5.5