remoteData and RemoteData do net work directly in template-only components

[NullVoxPopuli]

example:

  {{#let (RemoteData (concat "https://swapi.dev/api/people/" @id)) as |person|}}
    {{#if person.isLoading}}
      ... loading ...
    {{else if person.isError}}
      {{person.error}}
    {{else if person.isResolved}}
      {{person.value.name}} 
    {{/if}}
  {{/let}}

[NullVoxPopuli]

the problem

• RemoteData returns a function (which is the function registered with the appropriate helper manager
• ((RemoteData "url")) breaks ember
• (()) (double paren) needed to "invoke the function returned by RemoteData"