We already try to infer/guess the Document type if portal type object does not
exist: it's logical to do the same if portal type exists but is misconfigured,
or just way too old.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@40200 20353a03-c40f-0410-a6d1-a30d3c3de9de