2.0.0-beta.2 onCleanup never runs from inside of ref callback

[kanashimia]

Describe the bug

export default function App() {
  const [toggle, setToggle] = createSignal(0);
  return (
    <div>
      <Show when={toggle()}>
        <div ref={(el) => {
          console.log("start")
          onCleanup(() => {
            console.log("end")
          })
        }}>TEXT</div>
      </Show>
      <button onClick={() => setToggle(v => v ^ 1)}>
        Toggle: {toggle()}
      </button>
    </div>
  );
}

Your Example Website or App

https://solid2.netlify.app/#solidjs-repl:hyRmJjyHRvuhjuBJaIyBBA

Steps to Reproduce the Bug or Issue

When you click a button in the reproducer you should only see "start" but no "end"
If you switch to the 1.9 version there it will all be ok

Expected behavior

.

Screenshots or Videos

No response

Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 91.1]

Additional context

zulu writes on discord:

in the ref
there is no owner in 2.x playground

but there is in 1.x playground

[ryansolid]

This is by design but we should probably review this. I see that onCleanup is missing a dev warning. I will remedy that.

[ryansolid]

The warning has been released in the latest signals.. Should work with a clean install on beta.3.