StackView: When pushing an item to the stackview when the current has focus, the focus does not get transferred to the new item

StackView: When pushing an item to the stackview when the current has focus, the focus does not get transferred to the new item.

The attached example shows a case of this happening, when the timer runs, it will push the other item. Click on the first item to see it has focus and then when the new one appears it will not have focus anymore.