QFileDialog does not open read-only file

Using a modal native dialog on Windows to open a read-only file does not work. It will open a dialog saying: “This file is set to read-only. Try again with a different file name.” Code below can be used to reproduce the problem (try opening a read-only file):

QFileDialog dlg(this);
dlg.setOption(QFileDialog::DontUseNativeDialog, false);
dlg.setAcceptMode(QFileDialog::AcceptOpen);
QStringList fileNames;
if (dlg.exec())
    fileNames = dlg.selectedFiles();

It’s possible to open the read-only file with the Qt dialog. Also the static function, QFileDialog::getOpenFileName() is able to open the read-only file.