Federated query scenario

[jgilroy-cat]

Subgraph A

Camera {
angles : [Angle!]! -- Federated entity
}

type Angle @extends @key(fields: "id", resolvable: false) {
id: ID!
}

Subgraph B

Angle {

id : string!
name : string:

}

Assume that there are 3 angles associated with Camera.
Subgraph A collects the 3 ID's of the angle
Subgraph B findMany method is invoked with 3 ID's, due to permissions Subgraph B returns only 2.
The query will fail since angle is mandatory.

Is there a workaround for this scenario