Quiz is passed

I think i found a small bug. If you set the pass_rate of a quiz to 0% then the function quiz_is_passed in quiz.module will give TRUE if you only started/resume a quiz. You don't need to pass the quiz to get the status-message "You have already passed this @quiz.".. Its solved by adding "AND qnrs.is_evaluated = 1" to the query in the function quiz_is_passed