I have 2 entities, Clients and Webcams.
The Clients entity has a single field; clientName
Webcam has 3 fields; ipAddress, screenName & clientName (clientName is a reference to the clientName field in the Clients entity)
In my Webcams editor screen, I have an entity picker that lets me choose the clientName from the Clients entity, but when I select it, it goes in to a [Detached] state.
Edit: I am using the _base fetchPlan.