As seen in the image, when one is sorting on a list of results from the search feature, the container fields are also in the list of options. When I go to configure the fields, the container fields don't have the "Can be used for sorting" option and so I would assume that they wouldn't show up by default...rather than showing up by default. Is there a use case I'm not considering? The "can be used for search" option doesn't affect this list (nor should it, I wouldn't imagine).
What are your thoughts here? Having all those "non-data" fields there is confusing catalogers (if you're interested in my desire for change).