FieldScopedVariableResolver expect dictionary parent

Describe the bug When creating an extended stitched schema using the $fields option during delegation won’t work if the type is from the extended schema and not a remote schema. This is because FieldScopedVariableResolver expects context.Parent to be IReadOnlyDictionary<string, object> and not a regular C# object.

To Reproduce In a stitched schema extensions have something that looks like

extend type Query {
  product(productKey: String!): Product!
}

type Product {
	productKey: String!

	orders(customerKey: String): [Order!]!
		@delegate(schema: "commerce", path: "orders(productKey: $fields:productKey, customerKey: $arguments:customerKey)")
}

When executing a query that uses the above we see the message

Unable to cast object of type ‘Experiments.GraphQL.Schemas.Extensions.Product’ to type ‘System.Collections.Generic.IReadOnlyDictionary`2[System.String,System.Object]’.

Expected behavior Would expect the query to be able to use the Product field data in the delegated query.

Using Hot Chocolate 0.8.0.

[michaelstaib]

I will fix that in 0.8.1 so that we call the field resolver instead.

[michaelstaib]

This one is outdated.