fix

~dev_rating/application/classes/Controller/Teacher/Rating.php

@@ -305,8 +305,6 @@ class Controller_Teacher_Rating extends Controller_UserEnvi {
             $magic_bottom = 32;
             $magic_top = 38;
 
-            $curStudent['Rates'][$lastExtra]['MaxRate'] = 0;
-            $curStudent['Rates'][$lastNilExtra]['MaxRate'] = 0;
         	if ($lastExtra >= 0) {
 	            if ($curStudent['RateSemesterResult'] < $magic_bottom || 
 	            	$curStudent['RateSemesterResult'] > $magic_top)