[1.4.x] Fixed ordering-related failure in m2m_through_regress tests

Backpatch of dc569c8801

tests/regressiontests/m2m_through_regress/models.py

@@ -66,6 +66,9 @@ class Driver(models.Model):
     def __unicode__(self):
         return "%s" % self.name
 
+    class Meta:
+        ordering = ('name',)
+
 class CarDriver(models.Model):
     car = models.ForeignKey('Car', to_field='make')
     driver = models.ForeignKey('Driver', to_field='name')

tests/regressiontests/m2m_through_regress/tests.py

@@ -172,7 +172,7 @@ class ToFieldThroughTests(TestCase):
         self.car.drivers._add_items('car', 'driver', self.unused_driver)
         self.assertQuerysetEqual(
             self.car.drivers.all(),
-            ["<Driver: Ryan Briscoe>", "<Driver: Barney Gumble>"]
+            ["<Driver: Barney Gumble>", "<Driver: Ryan Briscoe>"]
         )
 
     def test_add_null(self):