Enable/Disable type field selection on interfaces

[JacobMountain]

Currently, when queries return interfaces all possible fields are selected: e.g.
Schema:

type Query {
    named: Named
}
type Person implements Named {
    name: String
    dogs: [Dog]
}
type Dog implements Named {
    name: String
    owner: Person
}
interface Named {
    name: String
}

Will generate query:

query Named {
    named: {
       name
       ... on Person {
           pets {
              name
           }
       }
       ... on Dog {
           owner {
              name
           }
       }
    }
}

But if we disable this new option (on @GraphQLQuery) it would generate just

query Named {
    named: {
       name
    }
}