Ticket #24608: 24608-test.diff

tests/model_fields/models.py

@@ -373 +373 @@
     id = models.UUIDField(primary_key=True, default=uuid.uuid4)
 
 
+class UUIDChild(PrimaryKeyUUIDModel):
+    pass
+
+
+class UUIDGrandchild(UUIDChild):
+    pass
+
+
 class RelatedToUUIDModel(models.Model):
     uuid_fk = models.ForeignKey('PrimaryKeyUUIDModel')

tests/model_fields/test_uuid.py

@@ -124 +124 @@
         self.assertTrue(u2_found)
         self.assertEqual(PrimaryKeyUUIDModel.objects.count(), 2)
 
+    def test_uuid_grandchild(self):
+        from .models import UUIDGrandchild
+        a = UUIDGrandchild()
+        a.save()
+        a.save()  # regression for #24608
+
     def test_underlying_field(self):
         pk_model = PrimaryKeyUUIDModel.objects.create()
         RelatedToUUIDModel.objects.create(uuid_fk=pk_model)