Domain Home is not considered as frontpage

Hello,

Here is the steps to reproduce this bug :

1° Create a domain
2° Add a node as frontpage in : /admin/config/domain/domain_site_settings/your_domain/edit
3° Add {% if is_front %}This is the frontpage{% else %}This is NOT frontpage{% endif %} to your page.html.twig
4° Go to your new frontpage
5° It displays : This is NOT frontpage.

Thanks.