fix

src/main/java/cn/com/qmth/scancentral/service/impl/ExamServiceImpl.java

@@ -347,7 +347,6 @@ public class ExamServiceImpl extends ServiceImpl<ExamDao, ExamEntity> implements
 
         if (config.getPaperTypeBarcodeContent() != null && !config.getPaperTypeBarcodeContent().isEmpty()) {
             markSiteService.saveByExamIdAndSubjectCode(config.getExamId(), config.getPaperTypeBarcodeContent());
-            updateWrapper.set(ExamEntity::getPaperTypeBarcodeContent, config.getPaperTypeBarcodeContent());
         }
 
         updateWrapper.set(ExamEntity::getUpdateTime, System.currentTimeMillis());