Functional `ref` prop throws a `Maximum update depth exceeded` error when suspending.

React version: `18.0.0-alpha-464f27572-20210713`

## Steps To Reproduce

1. Click on the `suspend` button: https://codesandbox.io/s/ref-set-too-many-times-jm0c3?file=/src/App.js.

## The current behavior

Clicking on the `suspend` button throws a `Maximum update depth exceeded` error.

## The expected behavior

Clicking on the `suspend` button suspends.
root: FiberRoot,
  finishedWork: Fiber,
): void {
  nextEffect = finishedWork;
  commitPassiveMountEffects_begin(finishedWork, root);
}
function commitPassiveMountEffects_begin(subtreeRoot: Fiber, root: FiberRoot) {
  while (nextEffect !== null) {
    const fiber = nextEffect;
    const firstChild = fiber.child;
    if ((fiber.subtreeFlags & PassiveMask) !== NoFlags && firstChild !== null) {
      ensureCorrectReturnPointer(firstChild, fiber);
      nextEffect = firstChild;
    } else {
      commitPassiveMountEffects_complete(subtreeRoot, root);
    }
  }
}
function commitPassiveMountEffects_complete(