fix

rankin-product-service/src/main/java/cn/rankin/productservice/service/MerchantProductService.java

@@ -216,7 +216,7 @@ public class MerchantProductService {
         }
 
         List<Tag> tagList = tagRepository.findByIds(tagIdList);
-        if (tagIdList.size() != tagIdList.size()) {
+        if (tagList.size() != tagIdList.size()) {
             return APIResult.error(ProductServiceAPICode.error("存在错误的tag"));
         }else {
             merchantProductTagRelationService.updateByPid(productId, merchantId, tagIdList);