{
  "source_policy": "dockerfile_fetch_historyless_base_snapshot",
  "base_commit": "5fccac12cc6cfa2c10ce231f8486896f0e3fc115",
  "repo": "apache/datafusion",
  "note": "The generated Dockerfile fetches the base commit with ancestor history, preserves .git, removes post-base refs/remotes/reflogs, and prunes unreachable future commit objects during image build."
}