How does the Owns property work?

[lukewarlow]

I notice that AccessKit includes the concept of a node owning another node, but this doesn't seem to be implemented anywhere?

I'm interested in what the design for this is envisaged to be? If I set Node A to own Node C, but Node B marks it C as a child, will AccessKit handle this "properly"?

I would assume accesskit could gracefully handle this such that ATs see Node C as a child of A NOT B? Is this desirable?