no issue
- Knex removed their use of several Bluebird methods, including `return`
- our code used `return`, but mostly to return null after a destroy action
- these uses have been replaced with `.then(() => null)` in order to
continue returning null and to avoid breaking anything
no issue
- When whole email batch fails we want to allow retrying sending a batch when post is republished
- Refactored naming for email event handling in mega
no issue
- having a `send_email_when_published` property on the Post resource that only has an effect at certain times was confusing and was causing issues with clients that needed to know details of how that toggle worked
- makes `post.send_email_when_published` a fully read-only property in the API
- adds support for `?send_email_when_published=true` query param that can be passed in POST/PUT requests to the posts endpoint when scheduling or publishing a post - this is the only way to set `post.send_email_when_published` to `true`
- adds handling to ensure that `post.send_email_when_published` is always reset to `false` when reverting a post back to a draft _unless_ an email has already been sent
no issue
- Limited posts visibility field permissions to Editor-Up + Admin Integrations
- We don't want contributors or other roles lower than Editor to be able to modify content gating attribute
