Signature of objects with __call__ method incorrectly inspected on signal connect

# from PyQt5.QtCore import QObject, pyqtSignal as Signal  # works
# from PyQt6.QtCore import QObject, pyqtSignal as Signal  # works
# from PySide2.QtCore import QObject, Signal              # breaks
from PySide6.QtCore import QObject, Signal                # breaks


class Emitter(QObject):
    sig = Signal(int, int)


class MyObj:
    def __call__(self, x: int):
        print(locals())


emitter = Emitter()
obj = MyObj()
emitter.sig.connect(obj)  # they ALL work if you connect to obj.__call__
emitter.sig.emit(1, 2)

TypeError: MyObj.__call__() takes 2 positional arguments but 3 were given