plain_text_for_blockquote_node

# File actiontext/lib/action_text/plain_text_conversion.rb, line 66
      def plain_text_for_blockquote_node(node, index)
        text = plain_text_for_block(node)
        return "“”" if text.blank?

        text = text.dup
        text.insert(text.rindex(/\S/) + 1, "”")
        text.insert(text.index(/\S/), "“")
        text
      end