Scope on morphTo directive applied to source model, rather than target

Describe the bug

When applying a scope to the morphTo directive, it appears that Lighthouse is trying to apply the scope to the root model, rather than then target relationship. For instance, given the following schema:

type Author {
    id: ID!
    publications: [Publication!]!
}

type Publication {
    id: ID!
    publication: Publishable @morphTo(scopes: ["active"])
}

type Magazine {
    id: ID!
    title: String!
    isActive: Boolean!
}

type Book {
    id: ID!
    title: String!
    isActive: Boolean!
}

union Publishable = Book | Magazine

Lighthouse is trying to apply the active scope to the Publication model, rather than the Magazine or Book model.

Expected behavior/Solution

The scope should be applied to the query responsible for fetching the Magazine or Book.

Steps to reproduce

See above example.

Lighthouse Version
v5.23.1

Start by reproducing the supplied Author, Publication, Magazine, and Book schema with the morphTo directive and active scope. Trace the morphTo scope handling to determine why the source model receives the scope instead of the target query. Done means active filters the Magazine or Book result and the behavior is covered by a regression test.