old_contents: from __future__ import absolute_import, print_function, unicode_literals
  
  from .base import *  # noqa
  
  KOLIBRI_SKIP_AUTO_DATABASE_MIGRATION = True
  
new_contents: from __future__ import absolute_import, print_function, unicode_literals
  
  from .base import *  # noqa
  
  KOLIBRI_SKIP_AUTO_DATABASE_MIGRATION = False
  
subject: Use migrations because `kolibri start` was added to tox matrix