QFontDialog::selectedFont() Does not returns Actual selected Font

#include <QApplication>
 #include <QFontDialog>
 #include <QDebug>
int main(int argc, char **argv)
 {
 QApplication app(argc, argv);
QFont f;
 qDebug() << f;
QFontDialog *dialog = new QFontDialog(f);
dialog->connect(dialog, &QFontDialog::accepted,
 [dialog]()
{ qDebug() << dialog->selectedFont() << dialog->currentFont(); }
);
dialog->open();
return app.exec();
 }