bugs/021/setup_codebase.sh

#!/usr/bin/env bash
# Recreate this bug's codebase (the dataset does not ship it).
set -euo pipefail
git clone https://github.com/tensorflow/models codebase
git -C codebase checkout ec549fd122da7c1987ba01246b7d26b7f8787e6a
# then: bash setup_env.sh && bash run_repro.sh