diff -r 5ff1fc726848 -r c6bca38c1cbf parts/django/tests/regressiontests/null_queries/models.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/parts/django/tests/regressiontests/null_queries/models.py	Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,25 @@
+from django.db import models
+
+class Poll(models.Model):
+    question = models.CharField(max_length=200)
+
+    def __unicode__(self):
+        return u"Q: %s " % self.question
+
+class Choice(models.Model):
+    poll = models.ForeignKey(Poll)
+    choice = models.CharField(max_length=200)
+
+    def __unicode__(self):
+        return u"Choice: %s in poll %s" % (self.choice, self.poll)
+
+# A set of models with an inner one pointing to two outer ones.
+class OuterA(models.Model):
+    pass
+
+class OuterB(models.Model):
+    data = models.CharField(max_length=10)
+
+class Inner(models.Model):
+    first = models.ForeignKey(OuterA)
+    second = models.ForeignKey(OuterB, null=True)