From: Antonio Larrosa <alarrosa@suse.com>
Subject: Fix for pytest-qt test_destroyed failure

This fixes the issue in the python-pytest-qt package (test-pyside6 flavor)
that triggered the following failure:

[   90s] ________________________________ test_destroyed ________________________________
[   90s] CALL ERROR: Exceptions caught in Qt event loop:
[   90s] ________________________________________________________________________________
[   90s] RuntimeError: Internal C++ object (Obj) already deleted.
[   90s] 
[   90s] The above exception was the direct cause of the following exception:
[   90s] 
[   90s] Traceback (most recent call last):
[   90s]   File "/usr/lib/python3.11/site-packages/pytestqt/wait_signal.py", line 219, in _quit_loop_by_signal
[   90s]     self._cleanup()
[   90s]   File "/usr/lib/python3.11/site-packages/pytestqt/wait_signal.py", line 226, in _cleanup
[   90s]     _silent_disconnect(signal, self._quit_loop_by_signal)
[   90s]   File "/usr/lib/python3.11/site-packages/pytestqt/wait_signal.py", line 741, in _silent_disconnect
[   90s]     signal.disconnect(slot)
[   90s] SystemError: <class 'RuntimeError'> returned a result with an exception set

This happened because PyObject_CallObject (or PyObject_GetAttr) was
setting an exception and warnDisconnectFailed was generating a new one
without the first one being processed yet.

Submitted to upstream in https://codereview.qt-project.org/c/pyside/pyside-setup/+/567559

Index: pyside-setup-everywhere-src-6.7.1/sources/pyside6/libpyside/pysidesignal.cpp
===================================================================
--- pyside-setup-everywhere-src-6.7.1.orig/sources/pyside6/libpyside/pysidesignal.cpp
+++ pyside-setup-everywhere-src-6.7.1/sources/pyside6/libpyside/pysidesignal.cpp
@@ -718,7 +718,7 @@ static PyObject *signalInstanceDisconnec
         Shiboken::AutoDecRef pyMethod(PyObject_GetAttr(source->d->source,
                                                        PySide::PySideName::qtDisconnect()));
         PyObject *result = PyObject_CallObject(pyMethod, tupleArgs);
-        if (result != Py_True)
+        if (result && result != Py_True)
             warnDisconnectFailed(slot, source->d->signature);
         return result;
     }