Consider editing published posts

Currently, once you publish a post, you can't really edit it anymore, it's considered "Done".

There are real scenarios though, where someone might want to continue editing their post locally and sync it later.

This means things like:
* Syncing with the production post before starting to edit (just in case changes were made to it in the meantime)
* Making edits of a production post locally
* Updating the production post

No files, tests, or entry points are named. Start by tracing how published posts are marked Done and how local and production posts are synchronized. Define the behavior for syncing before editing, editing a production post locally, and updating the production post, including how completion is represented.

Written by the indexing model from the issue text.