[docs] [issue12743] C API marshalling doc contains XXX

Éric Araujo <merwok@netwok.org> added the comment: It should be removed if someone is confident that it’s a obsolete comment, or if tests get added to answer the questions in the note. ---------- nosy: +eric.araujo _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue12743> _______________________________________