Fix failing recipe fails in 'Add an error column' mode [sc-163656]

Author: alexbourret

python-lib/rest_api_recipe_session.py

@@ -78,8 +78,10 @@ def retrieve_next_page(self, is_raw_output):
         logger.info("retrieve_next_page: Calling next page")
         json_response = self.client.paginated_api_call(can_raise_exeption=self.can_raise)
         default_dict = {
-            DKUConstants.REPONSE_ERROR_KEY: json_response.get(DKUConstants.REPONSE_ERROR_KEY, None)
+            DKUConstants.REPONSE_ERROR_KEY: ""
         } if self.behaviour_when_error == "keep-error-column" else {}
+        if isinstance(json_response, dict) and DKUConstants.REPONSE_ERROR_KEY in default_dict:
+            default_dict[DKUConstants.REPONSE_ERROR_KEY] = json_response.get(DKUConstants.REPONSE_ERROR_KEY, None)
         metadata = self.client.get_metadata() if self.display_metadata else default_dict
         is_api_returning_dict = True
         if self.extraction_key: