A new django app for unicorn migrations

cms/envs/common.py

@@ -959,6 +959,9 @@ INSTALLED_APPS = (
 
     # management of user-triggered async tasks (course import/export, etc.)
     'user_tasks',
+
+    # Unusual migrations
+    'database_fixups',
 )
 
 

common/djangoapps/database_fixups/__init__.py

@@ -0,0 +1,3 @@
+"""
+This app exists solely to host unusual database migrations.
+"""

common/djangoapps/database_fixups/migrations/0001_initial.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.db import migrations
+from django.db import migrations, models
 
 # We used to have a uniqueness constraint on auth_user.email:
 # https://github.com/edx/edx-platform/commit/c52727b0e0fb241d8211900975d3b69fe5a1bd57
@@ -27,7 +27,6 @@ def add_email_uniqueness_constraint(apps, schema_editor):
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('student', '0010_auto_20170207_0458'),
     ]
 
     operations = [

lms/envs/common.py

@@ -2164,6 +2164,9 @@ INSTALLED_APPS = (
 
     # Ability to detect and special-case crawler behavior
     'openedx.core.djangoapps.crawlers',
+
+    # Unusual migrations
+    'database_fixups',
 )
 
 # Migrations which are not in the standard module "migrations"