* Try to mitigate flaky spec by clearing mock space
* Fix for flaky article published spec
* Rubocop
* Tidy up the specs a bit, update the comment
* Modernize article factory (thanks, rubocop)
* Update update spec to use factory
* Use PublishWorker instead of callback
* nth_published_at -> from_newish_author
* Separate published/unpublished specs
* published_at is correct if unchanged
* Add spec for scheduled post