Symfony version(s) affected: 4.4.19

Description
Finder lists only one manuelly added file

How to reproduce

$finder = new Finder();
        $finder
            ->sortByName()
            ->files()
            ->followLinks()
            ->name('*.php');

        $finder->append([__DIR__ . '/Context.php']);
        $finder->append([__DIR__ . '/Logger.phpp']);
        $finder->append([__DIR__ . '/Serializer.php']);

        foreach ($finder as $item) {
            var_dump($item->getPathname());
        }

Output: v4.4.19:
string(59) "/var/www/html/vendor/zircote/swagger-php/src/Serializer.php"

Output: v4.4.18
string(56) "/var/www/html/vendor/zircote/swagger-php/src/Context.php"
string(56) "/var/www/html/vendor/zircote/swagger-php/src/Logger.phpp"
string(59) "/var/www/html/vendor/zircote/swagger-php/src/Serializer.php"

Possible Solution
Revert symfony/finder@94a9b86

Additional context