Calling QMetaObject.invokeMethod with BlockingQueuedConnection freezes

from PySide2 import QtWidgets, QtCore
app = QtWidgets.QApplication([])

class Thread(QtCore.QThread):
    def run(self):
        QtCore.QMetaObject.invokeMethod(
           self, "invoked_from_main_thread", QtCore.Qt.BlockingQueuedConnection
        )

    @QtCore.Slot()
    def invoked_from_main_thread(self):
        # We never get here in PySide2 5.14.2.
        print("Inside invoked_from_main_thread.")
        app.quit()

t = Thread()
t.start()

app.exec_()