QPDF::updateObjectMaps(ObjUser const& ou, QPDFObjectHandle oh)
{
    std::set<QPDFObjGen> visited;
    updateObjectMapsInternal(ou, oh, visited, true);
}
QPDF::updateObjectMaps(ObjUser const& ou, QPDFObjectHandle oh)
{
    std::set<QPDFObjGen> visited;
    updateObjectMapsInternal(ou, oh, visited, true);
}