REST comments endpoint does not return children for notes

[adamsilverstein]

When requesting the notes comment type from the WP_REST_Comments_Controller, children are not returned. This works correctly with regular comment types.

I have PR prepped with tests to correct this - the fix was to updated the get_children() call to include the parent comment's type.

Trac ticket: https://core.trac.wordpress.org/ticket/64152

Would also include the patch from ​https://github.com/WordPress/gutenberg/pull/72561 here. I was planning to create a sync PR, but I think it makes sense to do it here.

I am closing this ticket in favor of ​https://github.com/WordPress/wordpress-develop/pull/10405 - I moved the fix and unit test over to that PR since the issue being fixed is introduced in that PR.

[adamsilverstein]

In 61105:

Editor: Notes should not appear in the context of comments.

Prevent notes from inadvertently showing up in the context of comments - including on the Dashboard recent comments widget and the “Mine” count on the Comments page. Notes are stored as a custom ‘note’ comment type and this change ensures the note type is only returned when explicitly requested, or when ‘all’ types are requested.

The query for note children is modified to return all child notes. This fixes an issue where children were no longer being returned for the ‘note’ type.

Also fixes ​https://github.com/WordPress/gutenberg/issues/72548.

Props adamsilverstein, timothyblynjacobs, shailu25, peterwilsoncc, westonruter, mamaduka, kadamwhite.
Fixes #64145.
Fixes #64152.