Fixed
- Bug when `cognite.client.data_classes.filter` used with any `data_modeling` endpoint raised a `CogniteAPIError` for
snake_cased properties. This is now fixed.
- When calling `client.relationships.retrieve`, `.retrieve_multiple`, or `.list` with `fetch_resources=True`, the
`target` and `source` resources were not instantiated with a `cognite_client`. This is now fixed.