src/Result/File.php
public function clear()
    {
        $this->container->delete($this->name);
        $this->container->delete($this->name . '.lock');
        $this->file['name'] = null;
    }
public function clear()
    {
        $this->container->delete($this->name);
        $this->container->delete($this->name . '.lock');
        $this->file['name'] = null;
    }
The file that was saved during process() and has a .lock file attached
will be cleared, in case the form processing fails