erp5_api_style: post update status if status under 400

bt5/erp5_api_style/SkinTemplateItem/portal_skins/erp5_api_style/ERP5Site_asjIOStyle.py

@@ -106,7 +106,7 @@ for erp5_action_key in erp5_action_dict.keys():
         match = True
         # If an object is created, 201 code is exptected
         if mode == "post":
-          if response.getStatus() == 200:
+          if response.getStatus() < 400:
             response.setStatus(201)
         # If not search, job is done and we can return result
         if mode != "allDocs":