title: Rendering a tree in python using anytree and graphviz, without merging common nodes
body: <p>I am creating a tree from a list <code>["abc", "abd", "aec", "add", "adcf"]</code> using anytree package of python3. In this tree first character of each list element - <code>a</code> is a root, and subsequently, other characters are added as their children. When I render tree it looks like:</p>
  
  <pre><code>a
  ├── b
  │   ├── c
  │   └── d
  ├── e
  │   └── c
  └── d
      ├── d
      └── c
          └── f
  </code></pre>
  
  <p>But when I render the tree to picture using <code>to_picture</code> method, the image is -</p>
  
  <p><a href="https://i.stack.imgur.com/sipxy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sipxy.png" alt="enter image description here"></a></p>
  
  <p>I don't want the common nodes to be merged, as it is adding unwanted paths to my tree.</p>