title: Have any LGPL projects been forked and stayed LGPL after the fork?
body: <p>Have any LGPL projects been forked in such a way that they stayed LGPL after the fork?  I'd like to know if it is possible (has been done).</p>
  
  <p>Assumptions for scenario:<br>
  (1) GPL Version exists before fork<br>
  (2) LGPL Version exists before fork  </p>
  
  <p>After fork, can fork be LGPL or must it be GPL?</p>