False positive warning about opening bracket with inner classes

[lstrojny]

This is the code:

new class($gallery->getPhotoCount(), $limit, $offset) extends OffsetPagination
            {
                protected function getPrevRoute( // @codingStandardsIgnore
                    iterable $collection,
                    ?string $routeName,
                    array $routeParameters
                ): ?Route
                {
                    return null;
                }
            },

And this is the error:

FILE: ...terNations/Bundle/MediaBundle/DataMapper/Api/PhotoDataMapper.php
----------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
----------------------------------------------------------------------
 39 | ERROR | Opening bracket of "function getPrevRoute" must be in the
    |       | next line
    |       | (InterNations.Syntax.Braces.MissingNewlineFunctionBrace)
----------------------------------------------------------------------