[Request for Feedback] Ideas for addressing `isEditedPostDateFloating` to support custom statuses

[davisshaver]

Expected/Desired Behavior

Floating post dates should work on posts with custom post statuses.

Actual Behavior

Currently the block editor does not support floating post dates on posts with custom post statuses.

Steps to Reproduce the Problem

1. Create a new post
2. With or without Edit Flow enabled, the following JS command recreates the issue: wp.data.dispatch('core/editor').editPost({ status: 'pitch'});

The issue can also be recreated in a fresh WP/EditFlow installation by creating a new post. You should see the publish time is set immediately on opening the block editor.

Additional notes

The logic is contained here in isEditedPostDateFloating: https://github.com/WordPress/gutenberg/blob/master/packages/editor/src/store/selectors.js#L735-L760