When creating digest records within the context of mail composer
(and possibly other contexts) you'll have a `default_template_id`
key in the context which is going to override our safe default.
This is going to break email generation because the template
will be completely wrong and unpredictable. Lesson learned :)
Depending on the request might fail
nevertheless the website should be there to be found.
Fallback to search and use it if possible for digest' site name