title: It is possible to merge/rebase non direct relationship branches?
body: <p>As a integration test I would like to join several branches before merging them with my master.</p>
  
  <p>All of them diverged from the master and make it's own way. It is a correct merging different branches with no direct-relationship (e.g. parent/child)??</p>
  
  <p>Is there any good practise for rejoining branches??</p>
  
  <p>Thanks in advance,
  Raul. </p>