@@ -0,0 +1,660 @@
+# -*- coding: utf-8 -*-%0Afrom __future__ import unicode_literals%0A%0Afrom django.db import migrations%0A%0Asql = %22%22%22UPDATE django_content_type%0A         SET model = 'chapter'%0A         WHERE model = 'document' AND%0A               app_label = 'meinberlin_documents';%22%22%22%0A%0Areverse_sql = %22%22%22UPDATE django_content_type%0A                 SET model = 'document'%0A                 WHERE model = 'chapter' AND%0A                       app_label = 'meinberlin_documents';%22%22%22%0A%0A%0Aclass Migration(migrations.Migration):%0A%0A    dependencies = %5B%0A        ('meinberlin_documents', '0004_remove_create_document_phase'),%0A    %5D%0A%0A    operations = %5B%0A        migrations.RunSQL(sql, reverse_sql)%0A    %5D%0A

Add content_type migration to keep comments etc.