[ui-toolkit] TimePicker behaves erratically after changing system timezone

[Nekhelesh Ramananthan]

import QtQuick 2.3
import Ubuntu.Components 1.1
import Ubuntu.Components.Pickers 1.0

MainView {

    width: units.gu(40)
    height: units.gu(65)

    applicationName: "com.ubuntu.developer.nik90.test2"

    Page
    {
        title: i18n.tr("DatePicker Bug")

        DatePicker {
            anchors {
                top: parent.top
                left: parent.left
                right: parent.right
            }

            clip: true
            mode: "Hours|Minutes"
        }
    }
}

Steps to reproduce bug:
1. Open the above sample app ^^ on the device
2. Then open the system settings app.
3. Change the timezone
4. Switch back to the sample app
5. Click on any value in the timepicker

What happens:
The timepicker changes the value back to some random value and behaves erratically

Output log when that happens:
file:///usr/lib/i386-linux-gnu/qt5/qml/Ubuntu/Components/Pickers/DatePicker.qml:389:5: QML HoursModel: Binding loop detected for property "date"
file:///usr/lib/i386-linux-gnu/qt5/qml/Ubuntu/Components/Pickers/DatePicker.qml:389:5: QML HoursModel: Binding loop detected for property "date"
file:///usr/lib/i386-linux-gnu/qt5/qml/Ubuntu/Components/Pickers/Picker.qml:219:9: QML Binding: Binding loop detected for property "value"

[Zsombor Egri (zsombi)]

There is no TZ support in the DatePicker yet. No wonder this is working wrong. OTOH, there's no way to get the TZ changes in QML yet, so we must expose the Time component first then we can fix this. Time component is scheduled for post 14.10, so expect this to be fixed after that.

[Bartosz Kosiorek (gang65)]

I'm unable to reproduce this issue anymore, so I'm setting it as invalid