Bug Report

When running AddOverrideAttributeToOverriddenMethodsRector in a Silverstripe 5 project, it makes troubles in Page and PageController. Those classes are for historical reasons in global namespace and wrapped in namespace { ... }

For some reasons, rector also adds use Overwrite; statement which gives me a PHP Warning:

Warning: The use statement with non-compound name 'Override' has no effect in /var/www/html/app/src/PageController.php on line 5

Minimal PHP Code Causing Issue

<?php

namespace {

    use SilverStripe\CMS\Controllers\ContentController;

    class PageController extends ContentController
    {
//here will rector add  #[Override] 
        protected function init()
        {
            parent::init();
            // You can include any CSS or JS required by your project here.
            // See: https://docs.silverstripe.org/en/developer_guides/templates/requirements/
        }

    }
}

When I remove the namespace {} construct, everything is fine.

Expected Behaviour

Rector should check if I'm in global namespace and then not import global classes.