Comment settings Closed option unavailable despite current value is Closed

Problem/Motivation

Comment settings Closed option unavailable despite current value is Closed.

Noticed this after migrating nodes from d7.

Migrated node has comment settings = Closed, but on node edit form the Closed option is unavailable/does not show.

Proposed resolution

There's a type mistmatch between $element['status']['#default_value'] and CommentItemInterface::CLOSED at core/modules/comment/src/Plugin/Field/FieldWidget/CommentWidget.php:56.

Maybe just cast the prior to int or not use strict comparison !=?

// Only hide the option when it's not the currently selected option.
if ((int) $element['status']['#default_value'] !== CommentItemInterface::CLOSED) {
  $element['status'][CommentItemInterface::CLOSED]['#access'] = FALSE;
}