$ git clone -n https://src.fedoraproject.org/rpms/python-kiwisolver.git /var/lib/mock/f45-build-31314-651/root/chroot_tmpdir/scmroot/python-kiwisolver
Cloning into '/var/lib/mock/f45-build-31314-651/root/chroot_tmpdir/scmroot/python-kiwisolver'...
$ git fetch origin 5731bd278f4050b05d8a265ab5159be6bc5ef9d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-kiwisolver
 * [new ref]         5731bd278f4050b05d8a265ab5159be6bc5ef9d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5731bd2 Update to 1.5.1 upstream release