https://codesandbox.io/s/elastic-mayer-rzz4h2?file=/package.json

This is supposed to `console.error` but it doesn't.

17 warns: https://codesandbox.io/s/admiring-minsky-sze07m?file=/src/App.js
flushRenderPhaseStrictModeWarningsInDEV();
  if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
    throw new Error('Should not already be working.');
  }
  const finishedWork = root.finishedWork;
  const lanes = root.finishedLanes;
  if (__DEV__) {
    if (enableDebugTracing) {
      logCommitStarted(lanes);
    }
  }
  if (enableSchedulingProfiler) {
    markCommitStarted(lanes);
  }
  if (finishedWork === null) {
    if (__DEV__) {
      if (enableDebugTracing) {
        logCommitStopped();
      }
    }
    if (enableSchedulingProfiler) {
      markCommitStopped();
    }
    return null;
  } else {
    if (__DEV__) {
      if (lanes === NoLanes) {
        console.error(
          'root.finishedLanes should not be empty during a commit. This is a ' +
            'bug in React.',