$request = $event->getRequest();
print_r($request->files);die;

me dá

Symfony\Component\HttpFoundation\FileBag Object
(
    [parameters:protected] => Array
        (
            [files] => Array
                (
                    [0] => Symfony\Component\HttpFoundation\File\UploadedFile Object
                        (
                            [test:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 
                            [originalName:Symfony\Component\HttpFoundation\File\UploadedFile:private] => Chrysanthemum.jpg
                            [mimeType:Symfony\Component\HttpFoundation\File\UploadedFile:private] => image/jpeg
                            [size:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 879394
                            [error:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 0
                            [pathName:SplFileInfo:private] => /tmp/phpmUl54W
                            [fileName:SplFileInfo:private] => phpmUl54W
                        )

                )

        )

)

Eu estou tentando obter o valor para 'originalname' ou seja, "Chrysanthemum.jpg" sem recorrer a um loop, mas não consigo encontrar a sintaxe certa

Usando o uploader de arquivos 1UP, mas eu não acho que isso seja importante