title: Problems creating a GIT worktree
body: <p>I have a GIT repository which I would like to create a worktree from.  The repository looks like:</p>
  <pre><code>alpha
    .git
    Part a
    Part b
  </code></pre>
  <p>I execute the command git <code>worktree add ../beta beta</code>  (beta is a branch in alpha).  I get:</p>
  <pre><code>beta
    .git
    alpha
      Part a
      Part b
  </code></pre>
  <p>I want the copy worktree to look like the original, only with branch beta checked out:</p>
  <pre><code>beta
    .git
    Part a
    Part b
  </code></pre>
  <p>What am I doing wrong?</p>