[bugfix] Correct return type of fn:doc
[bugfix] Correct return type of fn:doc

olvidalo/exist,dizzzz/exist,wolfgangmm/exist,ambs/exist,windauer/exist,wolfgangmm/exist,eXist-db/exist,dizzzz/exist,windauer/exist,eXist-db/exist,eXist-db/exist,dizzzz/exist,ljo/exist,opax/exist,hungerburg/exist,opax/exist,ambs/exist,ambs/exist,ambs/exist,adamretter/exist,windauer/exist,wolfgangmm/exist,lcahlander/exist,olvidalo/exist,dizzzz/exist,eXist-db/exist,adamretter/exist,hungerburg/exist,hungerburg/exist,hungerburg/exist,windauer/exist,opax/exist,windauer/exist,ljo/exist,lcahlander/exist,eXist-db/exist,wolfgangmm/exist,lcahlander/exist,ambs/exist,RemiKoutcherawy/exist,lcahlander/exist,RemiKoutcherawy/exist,dizzzz/exist,wolfgangmm/exist,olvidalo/exist,RemiKoutcherawy/exist,RemiKoutcherawy/exist,ljo/exist,ljo/exist,wolfgangmm/exist,hungerburg/exist,dizzzz/exist,adamretter/exist,opax/exist,lcahlander/exist,lcahlander/exist,RemiKoutcherawy/exist,ljo/exist,adamretter/exist,RemiKoutcherawy/exist,adamretter/exist,ljo/exist,opax/exist,olvidalo/exist,ambs/exist,adamretter/exist,windauer/exist,olvidalo/exist,eXist-db/exist