Lines numbering in Code Block

The Code Block doesn't number lines anymore. The work around is to ask for Numbered list in addition to Code block.

Just applying Code Block:

     required init?(coder aDecoder: NSCoder) {
          super.init(coder: aDecoder)
          commonInit()
     }

Code Block AND Numbered List (or the other order)

1.      required init?(coder aDecoder: NSCoder) {
2.           super.init(coder: aDecoder)
3.           commonInit()
4.      }

Is there another way to get numbering directly ?