Batched state changes are not flushed if the promise code changes the DOM (= attaching an iframe). Reproduceable with Safari.

React version: 18.1.0

## Steps To Reproduce

1. Open [codepen](https://codepen.io/kh-viewar/pen/wvpVLxM) with Safari.
2. Click "Upload"
3. => "Spinner" text does not render while Promise is in pending

Link to code example:

https://codepen.io/kh-viewar/pen/wvpVLxM

## The current behavior

State changes are not executed.

## The expected behavior

State should change to true and render spinner component. After promise is resolved (2 seconds timeout), state should switch back to false and spinner component should unmount.

## Original discussion

https://github.com/facebook/react/issues/24365
Read this again, since a passive effect might have updated it
  remainingLanes = root.pendingLanes;
  if (includesSomeLane(remainingLanes, (SyncLane: Lane))) {
    if (enableProfilerTimer && enableProfilerNestedUpdatePhase) {
      markNestedUpdateScheduled();
    }
     C
     f
    if (root === rootWithNestedUpdates) {
      nestedUpdateCount++;
    } else {
      nestedUpdateCount = 0;
      rootWithNestedUpdates = root;
    }
  } else {
    nestedUpdateCount = 0;
  }
   If layout work was scheduled, flush it now.
  flushSyncCallbacks();
  if (__DEV__) {
    if (enableDebugTracing) {
      logCommitStopped();
    }
  }
  if (enableSchedulingProfiler) {
    markCommitStopped();
  }
  return null;
}
function releaseRootPooledCache(root: FiberRoot, remainingLanes: Lanes) {