old_contents: SECRET_KEY = 'tests'
  
  DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.sqlite3',
          'NAME': ':memory:',
      }
  }
  
  INSTALLED_APPS = (
      'django.contrib.contenttypes',
      'secretballot',
      'tests',
  )
  
  
  
new_contents: SECRET_KEY = 'tests'
  
  DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.sqlite3',
          'NAME': ':memory:',
      }
  }
  
  INSTALLED_APPS = (
      'django.contrib.contenttypes',
      'secretballot',
      'tests',
  )
  
  MIDDLEWARE_CLASSES = ()
  
subject: fix middleware warning