### Describe what you were doing when the bug occurred:
1. I did profiling on a list, that gets updated on each pagination api call.
2. Once the profiling was done, I moved around in the Profiler to view the Flamegraph
3. Moving to second capture, the Profiler crashed.


**DevTools version**: 4.6.0-6cceaeb67

```
Component stack: in ec
    in div
    in div
    in div
    in So
    in Unknown
    in n
    in Unknown
    in div
    in div
    in rl
    in Ze
    in fn
    in Ga
    in _s
```
if (prev[key] !== next[key]) {
        changedKeys.push(key);
      }
    }
    return changedKeys;
  }
   eslint-disable-next-line no-unused-vars
  function didFiberRender(prevFiber: Fiber, nextFiber: Fiber): boolean {
    switch (nextFiber.tag) {
      case ClassComponent:
      case FunctionComponent:
      case ContextConsumer:
      case MemoComponent:
      case SimpleMemoComponent:
         For 
         We 
         esl
        return (getFiberFlags(nextFiber) & PerformedWork) === PerformedWork;
       Not
       so 
      default:
         For 
         to 
        return (
          prevFiber.memoizedProps !== nextFiber.memoizedProps ||
          prevFiber.memoizedState !== nextFiber.memoizedState ||
          prevFiber.ref !== nextFiber.ref
        );
    }
  }