"Go to slot..." window problem with three monitor setup

Hi! I have a three monitor setup in which the QtCreator designer's "Go to slot..." window size calculation makes a weirdly looking window.
The problem is in qttools\src\designer\src\lib\shared\selectsignaldialog.cpp : 48

    const QRect availableGeometry = screen()->geometry();
    resize(availableGeometry.width() / 5, availableGeometry.height() / 2);

This code makes the dialog look like this:

My screen configuration looks like this:

Thank you!