title: how to stop adding an index in a list when droping an element from one list to another using cdkDragDrop
body: <p><a href="https://i.stack.imgur.com/9Jiwz.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p>I am trying to add a row from one list to another list. cdkDragDrop works properly for moving a row in the same list but when i try to move a row from one list to another, a new index is created which I want to avoid.</p>
  <p>Refer to the above image</p>