From 4db599f8f9804973eeaea2bb71d1b11601c4e0da Mon Sep 17 00:00:00 2001
From: Marko Budiselic <mbudiselicbuda@gmail.com>
Date: Sun, 20 Mar 2016 18:54:45 +0100
Subject: [PATCH] stupid bug fix

---
 demo/worker/worker_web_service.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/demo/worker/worker_web_service.py b/demo/worker/worker_web_service.py
index 203527229..832bceccd 100644
--- a/demo/worker/worker_web_service.py
+++ b/demo/worker/worker_web_service.py
@@ -103,7 +103,7 @@ class WorkerWebService(WebService):
         '''
         Stops the worker run.
         '''
-        self.params_data = None
+        self.params_data = {}
         self.is_simulation_running = False
         return ('', 204)