'No such signal QObject::aboutToClose()

Constant jumps from release to debug made me pay attention to the fact that when closing the release version of the application (opened directly in Qt Creator, before WinDeployeeQt), this is displayed in the console:

qt.core.qobject.connect: QObject::connect: No such signal QObject::aboutToClose()

although I do not use this signal and did not redefine it. I have only redefined this:

void MainWindow::closeEvent(QCloseEvent *event) {
    ClearNotes();
    ClearClientOutputContacts();
    ClearClientRedactContacts();
    ClearContactOutputCompanies();
    ClearDocuments();
    ClearNewClientContacts();
    event->accept();
}

in which I clear all dynamic fields, if any. The question is, close your eyes to this or try to understand where this message comes from? (This is not present in debug mode, only observed in release mode).

c++qt


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