PositionSource is updated every second despite the updateInterval on iOS with Qt 5.9

[philippeb8]

If I use the following code on an iOS with Qt 5.9 then I will see "clock tick" being printed every second on the console:

PositionSource
{
    active: true
    updateInterval: 60000 // 1 minute

    onPositionChanged:
    {
        console.log("clock tick");
    }
}