Convert criteria to detached criteria

maaartinus :

This question is titled similar to this one, but it's no duplicate as the other OP actually wanted something else (anyway, there's no answer to my question there). What I want is to recycle my already constructed Criteria in Subqueries.exists(DetachedCriteria).

I know that Criteria is basically DetachedCriteria with an attached Session, so I'd expect something like Criteria#toDetached() or a factory method on the other side, but I can't find anything.