chore: fixing new migrations.

organizations/tests/test_migrations.py

@@ -0,0 +1,21 @@
+"""
+Tests for migrations, especially potentially risky data migrations.
+"""
+from io import StringIO
+
+from django.core.management import call_command
+from django.test.testcases import TestCase
+from django.test.utils import override_settings
+
+
+class MigrationTests(TestCase):
+    """
+    Runs migration tests using Django Command interface.
+    """
+
+    @override_settings(MIGRATION_MODULES={})
+    def test_migrations_are_in_sync(self):
+        out = StringIO()
+        call_command("makemigrations", dry_run=True, verbosity=3, stdout=out)
+        output = out.getvalue()
+        self.assertIn("No changes detected", output)

test_settings.py

@@ -49,3 +49,6 @@
         }
     },
 ]
+
+# disable indexing on date field via django-simple-history.
+SIMPLE_HISTORY_DATE_INDEX = False