This is an MVCE for a bug in Dandi Archive and/or minio discovered while migrating backups2datalad's tests from using the staging Archive to using a Dockerized Archive.

Specifically, when using a versioned minio container, if an Archive client uploads an entry within a Zarr, deletes the entry, and then uploads a new entry whose path is beneath the first entry's path (effectively changing the first entry's path from a file to a directory), the second upload will have no effect and the second entry will not be stored. If versioning is not used (e.g., by deleting the docker compose run --rm createbuckets command from mvce.py), then the second upload will succeed.

The MVCE can be run by running nox in a clone of this repository. If invoked as nox -- --quiet, output from Docker Compose commands will be suppressed.