Signal slot not called due to race condition

from PySide6 import QtCore, QtWidgets

QtWidgets.QApplication()

class Signal(QtCore.QObject):
    result = QtCore.Signal()

def run():
    signal = Signal()
    def task() -> None:
        print("task")
        signal.result.emit()
    def done() -> None:
        print("done") # never executes with 6.8
    signal.result.connect(done)
    QtCore.QThreadPool.globalInstance().start(task)

run()