title: Git Extensions 'Do not commit' not working
body: <p>I’m using the Git Extensions version [2.50.02 - latest (current)]. When I open the "Merge branches" I see the checkbox “Do not commit” is checked. </p>
  
  <p><a href="https://i.stack.imgur.com/HTww0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HTww0.png" alt="enter image description here"></a></p>
  
  <p>When I perform a Merge, I see all changes are committed (not pushed to the remote). I was expecting these changes are not to be committed so I could review before pushing to the remote branch.</p>
  
  <p>Log shows Git Extension performs the following command </p>
  
  <blockquote>
    <p>git merge <em>branch</em> --no-commit --no-ff</p>
  </blockquote>
  
  <p>Has anyone seen this issue? If yes is there a work around?</p>