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
Simone Orsi
OCA Transbot