Loss of reactivity on DOM related objects #14006
Description
Version
3.6.0-alpha.2
Reproduction link
Steps to reproduce
Press each buttons on the example to increment the property of each class.
What is expected?
When pressing each button, the property of the related class should be updated and vuejs should render the new value since both class are reactive.
What is actually happening?
DOMRelatedClass do not trigger a rerender when its property is updated.
Bug is also present on DOMPoint, it is on that one that I first encountered the bug when I was creating a 2d rendering engine with canvas.