Yesterday I have discovered that addChild method of DisplayObject is not working as expected. While adding new child to displayList it ignores override for width/height getters.

It can be very confusing. Imagine you have image gallery witch displays images in row. Now you wanna mask 3 of them to make only 3 of them visible at time and create some scroll. If you are using some advanced layout system (let’s say you wanna center your image gallery) natural step it to override get width/get height properties, so mask size will be returned instead.

Here is Code Sample