should test proxy_str. fixes issue #1073

lib/network.py

@@ -243,7 +243,7 @@ class Network(threading.Thread):
         self.config.set_key("proxy", proxy_str, True)
         self.config.set_key("server", server_str, True)
         # abort if changes were not allowed by config
-        if self.config.get('server') != server_str or self.config.get('proxy') != proxy:
+        if self.config.get('server') != server_str or self.config.get('proxy') != proxy_str:
             return
 
         if self.proxy != proxy or self.protocol != protocol: