Specifically `An update to * inside a test was not wrapped in act(...)` is not logged when a prior update threw. 

<details>
<summary>failing test (#21766)</summary>

```js
// @gate __DEV__
it('warns if a setState is called outside of act(...) after a component threw', () => {
  let setValue = null;
  function App({defaultValue}) {
    if (defaultValue === undefined) {
      throw new Error();
    }
    const [value, _setValue] = React.useState(defaultValue);
    setValue = _setValue;
    return value;
  }

  expect(() => {
    act(() => {
      render(<App defaultValue={undefined} />, container);
    });
  }).toThrow();

  act(() => {
    rerender(<App defaultValue={0} />, container);
  });

  expect(() => setValue(1)).toErrorDev([
    'An update to App inside a test was not wrapped in act(...).',
  ]);
});
```
</details>

What I noticed is that in https://github.com/facebook/react/blob/27c9c95e23ddedb9163373950e364dd62038f6c0/packages/react-reconciler/src/ReactFiberWorkLoop.new.js#L2855-L2865
the `executionContext` will still equal `RetryAfterError` when we would expect a "missing act" warning.

"missing act" warnings are working as expected with legacy roots.
root: FiberRoot,
  wakeable: Wakeable,
  pingedLanes: Lanes,
) {
  const pingCache = root.pingCache;
  if (pingCache !== null) {
     
     
    pingCache.delete(wakeable);
  }
  const eventTime = requestEventTime();
  markRootPinged(root, pingedLanes, eventTime);
  if (
    workInProgressRoot === root &&
    isSubsetOfLanes(workInProgressRootRenderLanes, pingedLanes)
  ) {
     
     
     
     
     
     
     
    if (
      workInProgressRootExitStatus === RootSuspendedWithDelay ||
      (workInProgressRootExitStatus === RootSuspended &&
        includesOnlyRetries(workInProgressRootRenderLanes) &&
        now() - globalMostRecentFallbackTime < FALLBACK_THROTTLE_MS)
    ) {