[SailfishDevel] Bug in Page component?

[Fedor Zaitsev]

Hi. Today I found that standard PropertyAnimation element behavior unexpectedly. Take a look that code:
import QtQuick 2.0
import Sailfish.Silica 1.0

Page {
    Rectangle {
        id: rect
        width: 400
        height: 400
        color: "red"
    
        MouseArea {
            anchors.fill: parent
            onClicked: anim.start()
        }
    
        PropertyAnimation {
            id: anim
            target: rect
            property: "color"
            to: "green"
            duration: 2000
            running: false
        }
    
        Timer {
            id: timer
            repeat: true
            running: true
        }
    }
}

There is an animation that starts when we click at our rectangle and simple timer that do nothing. If you start that code you will see that animation working incorrectly - it just jumps to the green color and finish. However if you comment Timer element you will see correct animation.
Looks like that this is a Page component bug, because if you put this code in ApplicationWindow element everything works correctly and also there is no such bug in Qt 5.3