Content moderation selector and paragraphs

Problem/Motivation

In a node bundle configured for content moderation, with the bundle containing a paragraphs field, and the paragraph type containing another paragraph, editing the inner paragraph displays the form with the moderation choices replaced by one entry: Draft. Changes saved to that inner paragraph are not persisted.

Steps to reproduce

1. Add an entity revisions paragraph field to a node bundle
2. The paragraph type used should, itself, have an entity revisions paragraph field
3. Ensure there is a moderation state aside from draft available when in a published piece of content
4. Login to the site as a role that has permissions for the content type and moderation transitions but is not admin
5. Create a piece of content with a paragraph containing another paragraph, save and publish
6. Edit the content. At the node level the moderation states will show all applicable options
7. Edit the paragraph. The moderation states will still show all applicable options
8. Edit the paragraph within the paragraph. The moderations states will now only contain "Draft"

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet