The default value for app_instance_namespace should be the empty string

matthiask · matthiask · commit adec789ae656 · 2016-07-05T14:52:25.000+02:00
diff --git a/app/pages/migrations/0002_auto_20160705_1051.py b/app/pages/migrations/0002_auto_20160705_1051.py
@@ -15,7 +15,7 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='page',
             name='app_instance_namespace',
-            field=models.CharField(default=None, editable=False, max_length=100, verbose_name='app instance namespace'),
+            field=models.CharField(default='', editable=False, max_length=100, verbose_name='app instance namespace'),
             preserve_default=False,
         ),
         migrations.AlterField(
