From 97fe5e52c29228b022c8b9c79742039fc02ef3e1 Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Tue, 18 Mar 2014 16:41:05 +0100
Subject: [PATCH] Fix for an Issue #644

---
 lib/core/option.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/core/option.py b/lib/core/option.py
index bd89c64ce..b7f59e216 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -1000,6 +1000,10 @@ def _setHTTPProxy():
     """
     global proxyHandler
 
+    for _ in ("http", "https"):
+        if hasattr(proxyHandler, "%s_open" % _):
+            delattr(proxyHandler, "%s_open" % _)
+
     if not conf.proxy:
         if conf.proxyList:
             conf.proxy = conf.proxyList[0]