Rename migration to indicate slowness - may need to drop migration table and --fake run again.

evennia/comms/migrations/0014_convert_msgs_may_be_slow.py

@@ -8,10 +8,9 @@ from django.db import migrations
 def forwards(apps, schema_editor):
 
     try:
-        apps.get_model('accounts', 'AccountDB')
+        AccountDB = apps.get_model('accounts', 'AccountDB')
     except LookupError:
         return
-    AccountDB = apps.get_model('accounts', 'AccountDB')
 
     Msg = apps.get_model('comms', 'Msg')
     for msg in Msg.objects.all():

evennia/comms/migrations/0015_auto_20170706_2041.py

@@ -18,7 +18,7 @@ def _table_exists(db_cursor, tablename):
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('comms', '0014_auto_20170705_1736'),
+        ('comms', '0014_convert_msgs_may_be_slow'),
     ]
 
     db_cursor = connection.cursor()