some model meta change.

dav_events/migrations/0027_auto_20190207_1553.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.17 on 2019-02-07 15:53
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dav_events', '0026_auto_20190123_1528'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='eventflag',
+            options={'ordering': ['event', 'timestamp', 'status']},
+        ),
+    ]