Parent has only @requires fields without own fields

Schema Design
1

When I use the @requires directive, the parent parameter only has directive fields, it does not have its own fields

Any solution?

#Subgraph carts
type Cart @key(fields: "id") {
  id: ID!
  items: [CartItem]!
  totalPrice: Price! @requires(fields: "items { product { price { value }}}") #Bug Here
}

type CartItem @key(fields: "id") {
  id: ID!
  product: Product!
  qty: Int!
  totalPrice: Price! @requires(fields: "product { price { value }}") #Bug here
}

type Product @key(fields: "sku", resolvable: false) {
  sku: String!
  price: Price! @external
}

Log:

Cart totalPrice parent {
  "__typename":"Cart",
  "items":[{
    "product":{
      "price":{
        "value":20
       }
     }
  }],
  "id":"998e04b3-2fc6-44b6-b061-2d7d389cf9fb"
}

CartItem totalPrice parent {
  "__typename":"CartItem",
  "product":{
    "price":{
       "value":20
     }
   },
   "id":"8c51cb66-a976-481d-adbe-0f0e336b01c1"
}
2

My workaround was to move totalPrice to another subgraph

type Cart @key(fields: "id") {
  id: ID!
  items: [CartItem]! @external
  totalPrice: Price @requires(fields: "items {product { price { value }} qty}")
}

type CartItem @key(fields: "id") {
  id: ID!
  product: Product! @external
  qty: Int! @external
  totalPrice: Price! @requires(fields: "product { price { value } offers { price { value }}} qty")
}