Fix dev fixture for admin

db/fixtures/development/01_admin.rb

@@ -3,6 +3,7 @@ Gitlab::Seeder.quiet do
     s.id = 1
     s.name = 'Administrator'
     s.email = 'admin@example.com'
+    s.notification_email = 'admin@example.com'
     s.username = 'root'
     s.password = '5iveL!fe'
     s.admin = true