old_contents: """Launch."""
  from dnstwister import app
  app.run(debug=True)
  
new_contents: """Launch."""
  from dnstwister import app
  
  # At least until https://github.com/pallets/flask/pull/1910 is merged...
  app.jinja_env.auto_reload = True
  
  app.run(debug=True)
  
subject: Fix for template reloading issues in newer version of flask