$ git clone -n https://src.fedoraproject.org/rpms/python-zoidberg /var/lib/mock/f41-build-side-1-3137686-39796/root/chroot_tmpdir/scmroot/python-zoidberg
Cloning into '/var/lib/mock/f41-build-side-1-3137686-39796/root/chroot_tmpdir/scmroot/python-zoidberg'...
$ git fetch origin 391767f41208828e8b24e2a862e937a616fe14f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-zoidberg
 * [new ref]         391767f41208828e8b24e2a862e937a616fe14f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 391767f Add patch for new scipy