feat: 解决动态列新增失败问题

jyjz-system/jyjz-system-oa/src/main/java/cn/jyjz/xiaoyao/ocr/service/impl/OcrUserFieldServiceImpl.java

@@ -39,7 +39,11 @@ public class OcrUserFieldServiceImpl extends BaseServiceImpl<OcrUserFieldMybatis
 		try {
 			String userFieldFixed = ocrUserField.getUserFieldFixed();
 			String userFieldUnFixed = ocrUserField.getUserFieldUnFixed();
-			String fields = userFieldFixed.concat(",").concat(userFieldUnFixed);
+			String fields = userFieldFixed;
+			if(userFieldUnFixed!=null){
+				fields =fields.concat(",").concat(userFieldUnFixed);
+			}
+
 			LambdaQueryWrapper<OcrField> ocrFieldLambdaQueryWrapper = new LambdaQueryWrapper<>();
 			ocrFieldLambdaQueryWrapper.eq(OcrField::getIsrequired,2);
 			ocrFieldLambdaQueryWrapper.eq(OcrField::getReviewType,ocrUserField.getReviewType());