$ git clone -n https://src.fedoraproject.org/rpms/python-eth-bloom.git /var/lib/mock/f45-build-30534-646/root/chroot_tmpdir/scmroot/python-eth-bloom
Cloning into '/var/lib/mock/f45-build-30534-646/root/chroot_tmpdir/scmroot/python-eth-bloom'...
$ git fetch origin fac21b699dc31e0df3af084411d422980a0bf477:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-eth-bloom
 * [new ref]         fac21b699dc31e0df3af084411d422980a0bf477 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fac21b6 Update to 4.0.0