rename variable

src/store.cpp

@@ -78,9 +78,10 @@ int Application::run() {
           return response::not_found(response);
         }
 
-        const auto j = dat.process(data);
+        const auto json_response = dat.process(data);
 
-        response->write(Status::success_ok, data.dump(),
+        response->write(Status::client_error_precondition_required,
+                        json_response.dump(),
                         {header_access_control, header_application_data});
       };