3.3.0 fix

teachcloud-mark/src/main/resources/mapper/MarkUserClassMapper.xml

@@ -33,7 +33,7 @@
     <select id="pageClassByExamIdAndPaperNumber"
             resultType="com.qmth.teachcloud.mark.dto.mark.manage.MarkGroupClassProgressDto">
         SELECT
-            class_name className,
+            distinct class_name className,
             group_number groupNumber
         FROM
             mark_user_class