Added a missing migration for a change in the Schedule.base field.

- Legacy-Id: 18472

ietf/meeting/migrations/0037_auto_20200908_0334.py

@@ -0,0 +1,20 @@
+# Generated by Django 2.2.16 on 2020-09-08 03:34
+
+from django.db import migrations
+import django.db.models.deletion
+import ietf.utils.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('meeting', '0036_add_schedule_base'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='schedule',
+            name='base',
+            field=ietf.utils.models.ForeignKey(blank=True, help_text='Sessions scheduled in the base schedule show up in this schedule too.', limit_choices_to={'base': None}, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='derivedschedule_set', to='meeting.Schedule'),
+        ),
+    ]