Done via the following command:
git diff fcd5dd25 --stat --name-only | xargs sed -i '/Pleroma Authors/c# Copyright © 2017-2020 Pleroma Authors <https:\/\/pleroma.social\/>'

[#1335] Reorganized users.subscribers as UserRelationship. Added tests for UserRelationship-related functionality.

[#1335] Implemented notification mutes and reblog mutes as UserRelationships. User to UserRelationship relations and functions refactoring.

Misc. fixes / improvements.

lain authored Oct 05, 2019 and kaniini committed Oct 05, 2019

This saves us lots of sending out because we can use sharedInbox.

This saves us lots of sending out because we can use sharedInbox.

If we didn't put some kind of lifetime requirement on these, I guess you
could annoy people by sending large numbers of ephemeral posts that
provoke notifications but then disappear before anyone can read them.

The "expires_at" parameter accepts an ISO8601-formatted date which
defines when the activity will expire.

At this point the API will not give you any feedback about if your post
will expire or not.