Releases API and nested $expand no longer working


We were using an Api call to /odata/Releases?$expand=Environment($expand=Robots) with our orchestrator 2017.1.
As expected the response includes the Environment and inside the containing Robots.

After update to 2018.2.3 this request is only returning an empty array instead of the Robots$expand=Environment(%24expand%3DRobots)

Orchestrator version: 2018.2.3