Parser.php
public function parse($str)
    {
        $str = preg_replace('/(\r\n|\n\r|\n|\r)/', '<br />', $str);
        $str = preg_replace('/(<br[^>]*>[\s]*){2}/', '<br />', $str);
        
        return parent::parse($str);
    }
public function parse($str)
    {
        $str = preg_replace('/(\r\n|\n\r|\n|\r)/', '<br />', $str);
        $str = preg_replace('/(<br[^>]*>[\s]*){2}/', '<br />', $str);
        
        return parent::parse($str);
    }
Insert <br /> tag to new line.
@inheritdoc