I'm struggling to make an isolated example of this, but the app where I found this is pretty simple so hopefully it's not too challenging to track down.

So I was profiling https://the-react-bookshelf.netlify.com (locally) and got this when I clicked on the "login" button:

![image](https://user-images.githubusercontent.com/1500684/66011343-fe4dc580-e47f-11e9-9220-50ba884640f3.png)

![image](https://user-images.githubusercontent.com/1500684/66011358-0dcd0e80-e480-11e9-80fb-86c0f2196ef9.png)

The fact that there was no profile data for a commit is interesting. Each commit should be associated to a state update somewhere in the tree, and wherever that happened should trigger at least one component to re-render, but that didn't appear to happen here.

I also verified that I don't have any components filtered out:

![image](https://user-images.githubusercontent.com/1500684/66011428-57b5f480-e480-11e9-9e66-7cf86f8ba48f.png)

And I didn't filter any commits either:

![image](https://user-images.githubusercontent.com/1500684/66011433-5ab0e500-e480-11e9-97a8-be202351870d.png)

Here's the exported profile data:

https://gist.github.com/kentcdodds/dbff66043653333cd22cb9261a08550b

And here's the repo where you can pull it down and reproduce yourself: https://github.com/kentcdodds/bookshelf. The component we're looking at is here: https://github.com/kentcdodds/bookshelf/blob/master/src/unauthenticated-app.js

Sorry I can't give a more direct reproduction.
});
  it('should not allow new/saved profiling data to be set while profiling is in progress', () => {
    utils.act(() => store.profilerStore.startProfiling());
    const fauxProfilingData = {
      dataForRoots: new Map(),
    };
    spyOn(console, 'warn');
    store.profilerStore.profilingData = fauxProfilingData;
    expect(store.profilerStore.profilingData).not.toBe(fauxProfilingData);
    expect(console.warn).toHaveBeenCalledTimes(1);
    expect(console.warn).toHaveBeenCalledWith(
      'Profiling data cannot be updated while profiling is in progress.',
    );
    utils.act(() => store.profilerStore.stopProfiling());
    store.profilerStore.profilingData = fauxProfilingData;
    expect(store.profilerStore.profilingData).toBe(fauxProfilingData);
  });
  
  it('should filter empty commits', () => {
    const inputRef = React.createRef();
    const ControlledInput = () => {
      const [name, setName] = React.useState('foo');
      const handleChange = event => setName(event.target.value);
      return <input ref={inputRef} value={name} onChange={handleChange} />;
    };
    const container = document.createElement('div');
    
    document.body.appendChild(container);