.id() doesn't work for $refed components

[KhudaDad414]

Describe the bug

I have the following channel:

channels:
  slackResponse:
    address: /api/

and the following operation:

operations:
  reacted:
    action: send
    reply:
      channel:
        $ref: "#/channels/slackResponse"

I would assume the document.channels().get("slackResponse") and document.operations().get("reacted").reply() to return the same object but in second case, the object is missing the id property.

[jonaslagoni]

Let's continue in #873 as it's the same underlying issue.