Re-Size Markup while maintaining it's shape

Is there currently any way to maintain a Circle shape (markup) while resizing it? The obvious would be to hold down the shift key while re-sizing it, but that does not work.

I am using HTML5 Viewer Version 2.11.2.1552. I have been testing in Chrome and Firefox.

Users will use the built-in mark up tools to add a circle to the map. We simply want to re-size the circle by click and dragging but also want to maintain the circle shape. Currently when you click and drag to re-size, the circle becomes an ellipse. We need to maintain the exact circle shape.