6d9ec41f6f changed the behavior of
QSettings::NativeFormat for .plist files.
Previously an array of values was flattened into a multi-key QMap.
Now that QMap doesn't support multiple values for the same key,
the array is returned as QVariantList.
Adjust the code to take that into account.
Task-number: QTBUG-87218
Change-Id: I0cbf8ac7ef10b81539a29d1e68a09a40d3fe74ca
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>