Open and Close Dates Revert Back

Hi, the open and close dates get reverted back to "01/01/2001 - 00:00" or "09/09/2009 - 00:00" when you click the "submit" button on this page : http://example.com/node/nid_value_here/questions.

I think I was able to narrow down the problem to this line of code in the quiz.module file. Line: 2501.

If you comment out or remove the node_save function, the open and close dates will not revert back anymore. Also the data will still be updated and saved accordantly. Does anyone see any repercussions with removing the node_save from that line?

function quiz_set_questions(&$quiz, $questions, $set_new_revision = FALSE) {
  $old_vid = $quiz->vid;
  if ($set_new_revision) {
    // Create a new Quiz VID, even if nothing changed.
    $quiz->revision = 1;
  }
  node_save($quiz);