The hash and equality operators used need to be consistent with
each other. Unfortunately, QPMI::operator==() is not suitable to do
this. So specialize qHashEquals() for QPMI.
Fixes: QTBUG-88966
Change-Id: If5f19a722ae9fc4e78e93537e7ea15726f148768
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 83e95956ed58e88b11e2cc3cb61c5beacb7985db)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
6012285e7d