src/Form/SummaryFormButtonsFieldset.php
public function setOptions($options)
    {
        if (!isset($options['render_summary'])) {
            $options['render_summary'] = isset($this->options['render_summary'])
                                       ? $this->options['render_summary']
                                       : false;
        }
        
        parent::setOptions($options);
        
        if (isset($options['form_id'])) {
            $this->setFormId($options['form_id']);
        }
        
        return $this;
    }
public function setOptions($options)
    {
        if (!isset($options['render_summary'])) {
            $options['render_summary'] = isset($this->options['render_summary'])
                                       ? $this->options['render_summary']
                                       : false;
        }
        
        parent::setOptions($options);
        
        if (isset($options['form_id'])) {
            $this->setFormId($options['form_id']);
        }
        
        return $this;
    }
Set Options

@param array|\Traversable $options
@return $this