Service serialisation error

Problem/Motivation

I'm getting the folowing error :

LogicException: The database connection is not serializable. This probably means you are serializing an object that has an indirect reference to the database connection. Adjust your code so that is not necessary. Alternatively, look at DependencySerializationTrait as a temporary solution. in file /var/www/html/web/core/lib/Drupal/Core/Database/Connection.php on line 1309

When i use media library or paragraphs widgets to add items.

I traced it down to this module definition of the validation callback in NodeMenusHooks::formNodeFormAlter :

$form['#validate'][] = [$this, 'validateNodeForm'];

which somehow causes the database service to be serialized.

Proposed resolution

Use static method as validation callback instead of "$this"

$form['#validate'][] = self::class . ':validateNodeForm';

This is very similar to https://www.drupal.org/project/webform/issues/3500726#comment-16295192