Query interceptor to return true if the entity is in a list of items in ado.net data services?

Apparently this fails because by using the lambda expression events.Any... it's already querying in the initial context (ie. Querying on Events straight) and then when you add the events. Any clause it also tries to query on the new context (ie.

The nested "from" of Events within OnlineSubscription) so it understandably throws an exception.

I'm getting a "Not Implemented" exception with this code.

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