Steps to reproduce:

Install a clean verison of DXP 2.5 or 3.3

add new siteacess fr with language fre-FR, see code snippet below.

    admin_group:

            languages: [eng-GB, fre-FR]
            page_builder:
                siteaccess_list: [site]

         
        site:
            languages: [eng-GB]
        fr:
            languages: [fre-FR]

Create a new landingpage in Eng-GB named let's say: PAGE EN and publish

Create a french translation of the content and publish.

Try to edit the french translation, you can see. In the preview, you can see the fr siteaccess, you should not be able to

Expected result:

You should not be able to preview unauthorized siteaccess set in ezplatform.yaml file