forgot migration

lms/djangoapps/grades/migrations/0009_auto_20170111_1507.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('grades', '0008_persistentsubsectiongrade_first_attempted'),
+    ]
+
+    operations = [
+        migrations.AlterIndexTogether(
+            name='persistentcoursegrade',
+            index_together=set([('passed_timestamp', 'course_id'), ('modified', 'course_id')]),
+        ),
+        migrations.AlterIndexTogether(
+            name='persistentsubsectiongrade',
+            index_together=set([('modified', 'course_id', 'usage_key')]),
+        ),
+    ]