1 files changed, 10 insertions, 1 deletions
diff --git a/tests/djapp/models.py b/tests/djapp/models.py
index a65b50a..9b21181 100644
--- a/tests/djapp/models.py
+++ b/tests/djapp/models.py
@@ -55,6 +55,15 @@ class ConcreteSon(AbstractBase):
     pass
 
 
+class AbstractSon(AbstractBase):
+    class Meta:
+        abstract = True
+
+
+class ConcreteGrandSon(AbstractSon):
+    pass
+
+
 class StandardSon(StandardModel):
     pass
 
@@ -77,4 +86,4 @@ else:
 
 
 class WithSignals(models.Model):
-    foo = models.CharField(max_length=20)
-\ No newline at end of file
+    foo = models.CharField(max_length=20)