From 5e485a15ad07b492e648fe784ddd136d36ffcac4 Mon Sep 17 00:00:00 2001
From: Russell Keith-Magee <russell@keith-magee.com>
Date: Tue, 8 Feb 2011 14:07:14 +0000
Subject: [1.2.X] Fixed #13815 -- Ensure that reverse exclude lookups on
 nullable foreign keys exclude null values. Thanks to bpeschier for the report
 and patch.

Backport of r15458 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@15460 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 tests/regressiontests/null_queries/tests.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'tests')

diff --git a/tests/regressiontests/null_queries/tests.py b/tests/regressiontests/null_queries/tests.py
index 72dcd5153c..8392c588e4 100644
--- a/tests/regressiontests/null_queries/tests.py
+++ b/tests/regressiontests/null_queries/tests.py
@@ -67,3 +67,15 @@ class NullQueriesTests(TestCase):
             ['<Inner: Inner object>']
         )
 
+        # Ticket #13815: check if <reverse>_isnull=False does not produce
+        # faulty empty lists
+        objB = OuterB.objects.create(data="reverse")
+        self.assertQuerysetEqual(
+            OuterB.objects.filter(inner__isnull=False),
+            []
+        )
+        Inner.objects.create(first=obj)
+        self.assertQuerysetEqual(
+            OuterB.objects.exclude(inner__isnull=False),
+            ['<OuterB: OuterB object>']
+        )
-- 
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