Problem: Posts marked "local-only" do not show up on local timeline and cannot be pinned to profile.

[politas]

Mastodon 4.0 introduced an option to pin a post to the user's profile page, ensuring it stays at the top of the posts list when a user's profile is viewed. I think this is a good feature which I want to use as a server admin to have hints and tips hold position on my admin profile while announcements relating to server upgrades, downtime, etc are handled in a normal timeline.

Proposed fix - merge new code from https://github.com/mastodon/mastodon/pull/4675 and related changes