Editor: Sidebar content allowing edits of read-only data

[GeoJunkie]

Steps to reproduce

1. Start with an AT WP.com or Jetpack WP.org site
2. Activate the Classic Editor
3. Install the Yoast Premium SEO plugin
4. Edit a post in WP Admin Post editor
5. Observe the notice on the right sidebar
6. Edit a post in Calypso

What I expected

The same Yoast information regarding Yoast internal linking to be displayed.

What happened instead

A "Prominent words" tab appears, with a field to edit that content.

This field is updated by Yoast and shouldn't be exposed to the users. For some reason, the Calypso Classic Editor is displaying the wrong information.

I was able to reproduce this on a test WP.com AT site and a Jurassic Ninja site with Jetpack active.

Browser / OS version

I was using Firefox 71.0 (64-bit) on MacOS Catalina 10.15.1 (19B88), although this seems to be browser independent.

Screenshot / Video

WP Admin Classic Editor, showing how it should be displayed
Image Link: https://d.pr/i/zWQYYn

Calypso Classic Editor
Image Link: https://d.pr/i/9kHtv6

Gutenberg in Calypso shows properly
Image Link: https://d.pr/i/YOT73y

Context / Source

Encountered this when a user was trying to understand what to put into the fields in 17116865-hc

#user-report #painpoint

[stale]

This issue has been marked as stale and will be closed in seven days. This happened because:

• It has been inactive in the past 9 months.
• It isn't a project or a milestone, and hasn’t been labeled `[Pri] Blocker`, `[Pri] High`, `[Status] Keep Open`, or `OSS Citizen`.

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