amplify-js: Field Level @auth declarations throw errors?

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type User 
@model 
{
  name: String
  balance: Int @auth(rules: [
    {allow: groups, groups: ["Admins"], operations: [update, create, read]},
    {allow: owner, ownerField: "id", operations: [read]},
  ])
}

It appears I get an error if I issue a graphql query for name and balance.

Meaning, I have to issue two different queries depending on whether the logged in user is an admin or not.

Seems to me that if I try to read a particular field and don’t have permissions, it should just return null.