Disable HTML filtering setting broken on 5.2.0

Actually the docs are wrong. I found that I do not need to disable HTML filtering. Here's what I did:

  1. Under Site Setup > HTML Filtering, move script from Nasty tags to Valid tags, and save.

No steps from https://docs.plone.org/develop/plone/forms/wysiwyg.html#disabling-html-filtering-and-safe-html-transformation are necessary.

This is closer to being correct, but still not quite right:

https://docs.plone.org/adapt-and-extend/config/html-filtering.html#enabling-html-embed-codes