From 4742328b908e57b3d87e2c0752ed8d4b51763e55 Mon Sep 17 00:00:00 2001
From: Harry Marr <harry.marr@gmail.com>
Date: Mon, 4 Oct 2010 12:10:29 +0100
Subject: [PATCH] Delete stale cursor when query is filtered. Closes #62.

---
 mongoengine/queryset.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mongoengine/queryset.py b/mongoengine/queryset.py
index e275bb31..6d4ad55e 100644
--- a/mongoengine/queryset.py
+++ b/mongoengine/queryset.py
@@ -479,6 +479,7 @@ class QuerySet(object):
             query &= q_obj
         self._query_obj &= query
         self._mongo_query = None
+        self._cursor_obj = None
         return self
 
     def filter(self, *q_objs, **query):