Delete anchor point in Sketch 3

I have a shape consisting of three anchor points. Now I want to delete one anchor point leaving the space between the two adjacent anchor points empty. So I follow the tried old Illustrator approach, but what happens instead is that when I press Backspace to delete the anchor point the point is removed but the shape border continues now instead between two of the three remaining anchor points (the same thing that would happen if you click an anchor point holding Alt in Illustrator).

I realize this may be a tad hard to follow, so here’s what happens in images:

And here is a manipulated image of what I would like should happen:

Do we have any Sketch 3 guru here who know how to achieve this?

Answer

Attribution
Source : Link , Question Author : AndroidHustle , Answer Author : aaronneil