$ git clone -n https://src.fedoraproject.org/rpms/python-eth-keyfile.git /var/lib/mock/f42-build-side-1-3511122-46047/root/chroot_tmpdir/scmroot/python-eth-keyfile
Cloning into '/var/lib/mock/f42-build-side-1-3511122-46047/root/chroot_tmpdir/scmroot/python-eth-keyfile'...
$ git fetch origin 1d1e299710ea843a63cc0656f01cd48fcf99c57f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-eth-keyfile
 * [new ref]         1d1e299710ea843a63cc0656f01cd48fcf99c57f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d1e299 eth-keyfile ver. 0.9.1