`docker import` cannot express "empty list", so a base committed by the in-image
upgrader (run_oci.sh passes --change "CMD []") came back as null in the flattened
image and the equality check refused to retag — over a difference `docker run`
cannot see. Normalise empty Entrypoint/Cmd to absent on both sides.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B7EnDW6RSd2nhEPZMzMkqi