Profile updates should send the full actor object

[mattwiebe]

Quick summary

Reported by @snarfed in akirk/friends#436

---

I noticed an interesting quirk of the Update AP activities for actors that Friends sends out: they don't include the complete new actor object, just the id. eg something like:

{
  "@context": ["https://www.w3.org/ns/activitystreams"],
  "type": "Update",
  "id": "https://cmalt.simonwood.info/@blog#activity-update-1737411556",
  "actor": "https://cmalt.simonwood.info/@blog",
  "object": "https://cmalt.simonwood.info/@blog",
  "to": "https://www.w3.org/ns/activitystreams#Public"
}

Technically AP says S2S Updates should include the complete object (more):

Server to server interaction and updates from the server to the client should contain the entire new representation of the object...

Steps to reproduce

Update your profile and log the output. This is where a real outbox will come in handy, we can inspect things there. :)

Site owner impact

More than 60% of the total website/platform users

Severity

Minor

What other impact(s) does this issue have?

No response

If a workaround is available, please outline it here.

No response

[mattwiebe]

This, as mentioned by @pfefferle in this comment, will actually be fixed in our new Outbox system that will land in #1203