Fix migrations for trashbin feature

dav_registration/migrations/0008_auto_20201208_1906.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-12-08 18:06
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dav_registration', '0007_auto_20201208_1853'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='registration',
+            old_name='answered',
+            new_name='answered_obsolete',
+        ),
+    ]