Introspection returns OrderArg with null inputFields

[nasdf]

Describe the problem
When introspecting a schema with a many-to-one relationship it returns an OrderArg with null inputFields. This causes an error in the latest GraphiQL.

To Reproduce
Create a schema with a many-to-one relationship and run introspection.

type user {
    age: Int
    name: String
    points: Float
    verified: Boolean
}

type group {
    members: [user]
}

Expected behavior
I believe the expected behavior is to return the OrderArg object with at least 1 inputField.

Platform
MacOS develop branch

Additional context

Introspection result excerpt:

...
{
    "description": "",
    "enumValues": null,
    "fields": null,
    "inputFields": null,
    "interfaces": null,
    "kind": "INPUT_OBJECT",
    "name": "groupOrderArg",
    "possibleTypes": null
}
...

Error from GraphiQL:

{
  "errors": [
    {
      "message": "Introspection result missing inputFields: { description: \"\", enumValues: null, fields: null, inputFields: null, interfaces: null, kind: \"INPUT_OBJECT\", name: \"groupOrderArg\", possibleTypes: null }.",
      "stack": "Error: Introspection result missing inputFields: { description: \"\", enumValues: null, fields: null, inputFields: null, interfaces: null, kind: \"INPUT_OBJECT\", name: \"groupOrderArg\", possibleTypes: null }.\n    at buildInputObjectDef (http://localhost:5173/node_modules/.vite/deps/chunk-JJM3ZUCC.js?v=1e9f098c:8874:13)\n    at buildType (http://localhost:5173/node_modules/.vite/deps/chunk-JJM3ZUCC.js?v=1e9f098c:8795:18)\n    at http://localhost:5173/node_modules/.vite/deps/chunk-JJM3ZUCC.js?v=1e9f098c:8724:28\n    at keyValMap (http://localhost:5173/node_modules/.vite/deps/chunk-JJM3ZUCC.js?v=1e9f098c:3137:27)\n    at buildClientSchema (http://localhost:5173/node_modules/.vite/deps/chunk-JJM3ZUCC.js?v=1e9f098c:8721:19)\n    at http://localhost:5173/node_modules/.vite/deps/chunk-5EYXVEAX.js?v=1e9f098c:23864:27"
    }
  ]
}

[fredcarle]

Related issues: #1502 and #1463