In D15015#416156, @ashoat wrote:

Based on my read of the docs, what's going on here is that in React 19, ref just becomes like any other prop. So we no longer needs a special type param for it.

But for that to work correctly, we need to make sure that each of the props type here have a ref prop. It doesn't look like that change has been made here. Is it handled in a later diff?

I think it is fixed later in D15046. But it would be really helpful if that diff was referenced here.