Using ref on MenuList breaks MenuList functionality

[olivercoad]

I wanted to use a ref with MenuList, but after adding the ref a lot of functionality stopped working, such as the up/down arrows:

MenuList.jsx:62 Uncaught TypeError: Cannot read properties of undefined (reading 'firstChild')
    at moveFocus (MenuList.jsx:62:32)
    at HTMLUListElement.handleKeyDown [as $$keydown] (MenuList.jsx:150:13)

After doing some debugging, I found that the issue is the use of {...other} spread makes the props.ref override the listRef. I think a solution could be to add "ref" into the splitProps call.

I haven't checked if other components have similar issues.