Missing caption in QFileDialog::getOpenFileName on macOS

QFileDialog::getOpenFileName() on macOS is still not displaying the caption on macOS in QT6. This has been a longstanding and unresolved bug from QT5 – see https://bugreports.qt.io/browse/QTBUG-59805.

Please, please, please give it some attention.

I'm a QT Commercial licensee and every time there's a new QT release, I have to compile QT with an "interim" fix (which doesn't visually look good), when I'd rather use the pre-compiled binaries. I'm yet to test whether the "interim" fix works in QT6.

For more details, please read ALL the comments on 59805 - they still apply to the problem here in QT6.

Also, I tried applying the interim b9ecbca.diff fix to QT6 and uncovered an enum miss-match bug specific to QT6 between

qtbase/src/widgets/dialogs/qfiledialog.h   and

qtbase/src/gui/kernel/qplatformdialoghelper.h

Michael