$ git clone -n https://src.fedoraproject.org/rpms/numpy.git /var/lib/mock/f41-build-1280178-23177/root/chroot_tmpdir/scmroot/numpy
Cloning into '/var/lib/mock/f41-build-1280178-23177/root/chroot_tmpdir/scmroot/numpy'...
$ git fetch origin e11b4c4995f522b467e950bc2c48bc166620eb3e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/numpy
 * [new ref]         e11b4c4995f522b467e950bc2c48bc166620eb3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e11b4c4 Do not use %eln macro