title: creating a new workflow by using the existing workflow - Modifications are not Saved
body: <p>Am creating a new workflow by using the existing workflow ( i.e. By copying the existing workflow under  <code>/etc/workflow/models/</code>).
  But when I do this the newly created workflow is not saved for any future modifications. Observed that the newly created workflow is having a version as <code>jcr:rootVersion</code> and also the model is having the <code>jcr:predecessors</code> property of Type <code>Reference[]</code>  is having a value as shown in below screenshot. Can’t we reuse the existing models in the way which I am trying ? or how to restrict the value ?</p>
  
  <p><img src="https://i.stack.imgur.com/sIWP9.jpg" alt="Workflow"></p>
  
  <p><img src="https://i.stack.imgur.com/Qfukn.jpg" alt="screenshot"></p>
  
  <p><img src="https://i.stack.imgur.com/B6t9H.jpg" alt="workflow">
  <img src="https://i.stack.imgur.com/WpyuD.jpg" alt="New Workflow Node">
  <img src="https://i.stack.imgur.com/Luw03.jpg" alt="Existing Workflow Node"></p>