**Do you want to request a *feature* or report a *bug*?**
Report a bug

**What is the current behavior?**
The `useState` hook's value is shown as `undefined` in React DevTools if the value is a string or a number. Clicking on the bug icon prints the correct values to console.

![image](https://user-images.githubusercontent.com/21111572/65421153-b7225d80-de0b-11e9-8a69-a31836a41c7c.png)


**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React.**
CodeSandbox: https://codesandbox.io/s/keen-colden-syb7r
Direct link to page so you can see the DevTools: https://2km9v.csb.app/

**What is the expected behavior?**
The DevTools should show the correct value of the hook.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**
React 16.9.0.
Google Chrome [Version 77.0.3865.90 (Official Build) (64-bit)] running on Linux x64.

This issue appeared after version 4.1.0 (9/19/2019) of the DevTools Chrome extension.

Might be same bug as #16843 but this one appears without any complicated reproduction steps.

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */
import React, {useEffect, useRef, useState} from 'react';
import type {Element} from 'react';
import EditableValue from './EditableValue';
import ExpandCollapseToggle from './ExpandCollapseToggle';
import {alphaSortEntries, getMetaValueLabel} from '../utils';
import {meta} from '../../../hydration';
import styles from './KeyValue.css';
import type {InspectPath} from './SelectedElement';
type OverrideValueFn = (path: Array<string | number>, value: any) => void;
type KeyValueProps = {|
  alphaSort: boolean,
  depth: number,
  hidden?: boolean,
  inspectPath?: InspectPath,
  isReadOnly?: boolean,
  name: string,
  overrideValueFn?: ?OverrideValueFn,
  path: Array<any>,
  value: any,
|};
export default function KeyValue({