REG: Window ApplicationModal widget accepts actions to other dialog when other dialog is created after app modal widget

#include <QApplication>
#include <QLabel>

int main(int argc, char **argv)
{
  QApplication app(argc, argv);
  QLabel *w0 = new QLabel("Base Widget");
  w0->resize(200, 200);
  w0->show();
  QLabel *w1 = new QLabel("Application modal widget", w0, Qt::Dialog);
  w1->resize(200, 200);
  w1->setWindowModality(Qt::ApplicationModal);
  w1->show();
  QLabel *w2 = new QLabel("Non-modal widget", w0, Qt::Dialog);
  w2->resize(200, 200);
  w2->show();
  return app.exec();
}