TextInput not working properly on iOS devices

import QtQuick 2.5
import QtQuick.Window 2.2
import QtQuick.Controls 1.4

Window {
    visible: true

    Column {
        TextField {
            id: first
            font.pointSize: 30
            focus: true
            onEditingFinished: second.focus = true
        }
        TextField {
            id: second
            font.pointSize: 30
            onEditingFinished: first.focus = true
        }
    }
}