Strange qml property evaluation behaviour

[Danix]

Hello guys, I have the following QtQuick snippet showing behavior I don't quite understand:

import QtQuick 2.5

Rectangle {
id: rect
width: 300
height: 300
property int property1: height
property int property2: width
 Rectangle {
    height: rect.property1
    width: {
     console.log("rect width is ", rect.property2); 
     return rect.property2;
    }
  }
}

So, I am binding rect.property2 to rect.width which is 300. I would expect the console log to appear once saying "rect width is 300", but it is output twice: "rect width is 0" and "rect width is 300". As a user, based on the above code I am not expecting rect.width to be zero (this behaviour is actually breaking the logic in my current project). But if I comment out the line "height: rect.property1" I see the expected output . Any ideas how to explain this?