fix

zhongzheng-system/src/main/java/com/zhongzheng/modules/grade/service/impl/UserPeriodServiceImpl.java

@@ -647,6 +647,9 @@ public class UserPeriodServiceImpl extends ServiceImpl<UserPeriodMapper, UserPer
             }
         }
         if(Validator.isNotEmpty(bo.getAllReStudy())&&bo.getAllReStudy()==1){
+            if(classGradeUser.getPeriodStatus()==-1){
+                throw new CustomException("已打回不通过，请勿重复操作");
+            }
             //全部打回重学
             LambdaUpdateWrapper<ClassGradeUser> objectLambdaUpdateWrapper = Wrappers.lambdaUpdate();
             objectLambdaUpdateWrapper.eq(ClassGradeUser::getId, classGradeUser.getId());