Ticket #10967: 10967-test.diff

tests/regressiontests/model_inheritance_regress/models.py

@@ -110 +110 @@
         return "PK = %d, base_name = %s, derived_name = %s" \
                 % (self.customPK, self.base_name, self.derived_name)
 
+class DerivedM2(BaseM):
+    pass
+
 # Check that abstract classes don't get m2m tables autocreated.
 class Person(models.Model):
     name = models.CharField(max_length=100)
@@ -385 +388 @@
 >>> p4.bachelorparty_set.all()
 [<BachelorParty: Bachelor party for Bob>, <BachelorParty: Bachelor party for Dave>]
 
+# with multi-table inheritance, forcing an update using a child model with no
+# fields of its own should work (regression test for #10967)
+>>> dm2 = DerivedM2.objects.create(base_name='Basic')
+>>> dm2.base_name = 'Advanced'
+>>> dm2.save(force_update=True)
+
+
 """}