title: How to force root stack update when nested stack is in state DELETE_COMPLETE?
body: <p>I had to delete nested stack, but I cannot update the root one now.</p>
  <p>I get the following error:</p>
  <blockquote>
  <p>Stack is in DELETE_COMPLETE state and can not be updated.</p>
  </blockquote>
  <p>What should I do to make CFN update root stack and recreate the nested one?</p>