[Bug] Unwanted `obs` columns are returned from `ExperimentAxisQuery.to_anndata`

[royassis]

When calling ExperimentAxisQuery.to_anndata and using column_names, the functions also returns the obs columns found in the ExperimentAxisQuery obs_query.

Versions (please complete the following information):

• TileDB-SOMA version: 1.15.7
• Language and language versionPython
• OS Ubuntu

[johnkerl]

@royassis this is by design. Perhaps we can discuss an opt-in option to exclude those?

[royassis]

Sounds good

[johnkerl]

BTW here is a context issue: #755