title: Stop tasks from parallel branch when another branch is taken
body: <p>In the process illustrated, if the XOR gateway goes into its “else” branch, there is no point for tasks 2 A and B to continue.</p>
  <p>Can this be drawn more elegant than what I’ve done here?</p>
  <p>I know about the compensation event, but in this example there is no need for “undo”, just stop.</p>
  <p><a href="https://i.stack.imgur.com/SGMKm.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SGMKm.jpg" alt="enter image description here" /></a></p>