$ git clone -n https://src.fedoraproject.org/rpms/python-eth-bloom.git /var/lib/mock/f42-build-59019252-6570271/root/chroot_tmpdir/scmroot/python-eth-bloom
Cloning into '/var/lib/mock/f42-build-59019252-6570271/root/chroot_tmpdir/scmroot/python-eth-bloom'...
$ git fetch origin a72a4fab6f299d85e15d525273ddea2d2e9a33d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-eth-bloom
 * [new ref]         a72a4fab6f299d85e15d525273ddea2d2e9a33d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a72a4fa Initial package