Calling reset() with the owned handle should maintain ownership and not
leak resources. Move assignment should also handle self-assignment
without leaks. The new tests verifies that this holds true.
Task-number: QTBUG-132507
Change-Id: Icdfa4d67b06b71a74e810593e57449b51982c98c
Reviewed-by: Tim Blechmann <tim.blechmann@qt.io>
(cherry picked from commit 03bd9491491881529ad28cd6d672edfdda9a0065)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 33f37ff6376835dc8add4e5d8273f3dc5e7b086d)
c803b1f534