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

**What is the current behavior?**
If there is a client/server mismatch for text inside of an a or button element, it causes it to be automatically focused on page load.

**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar (template for React 16: https://jsfiddle.net/Luktwrdm/, template for React 15: https://jsfiddle.net/hmbg7e9w/).**
```
let text;
let URL = '/randomURL';
if (typeof window !== 'undefined') {
  text = 'CLIENT TEXT';
} else {
  text = 'TEXT';
}

return (
  <a href={URL}>
    {text}
  </a>
);
```

if the focus is not on the window (i.e. if a dom element is selected in the chrome inspector or react inspector widnow), then it doesn't add the focus.

**What is the expected behavior?**
The expected behavior is that it would either show CLIENT TEXT or TEXT (depending on how React16 resolves the diff), but for it not to be automatically highlighted 

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**
React16 / macosx / chrome + ff + safari
return work;
};
ReactBatch.prototype.then = function(onComplete: () => mixed) {
  if (this._didComplete) {
    onComplete();
    return;
  }
  let callbacks = this._callbacks;
  if (callbacks === null) {
    callbacks = this._callbacks = [];
  }
  callbacks.push(onComplete);
};
ReactBatch.prototype.commit = function() {
  const internalRoot = this._root._internalRoot;
  let firstBatch = internalRoot.firstBatch;
  invariant(
    this._defer && firstBatch !== null,
    'batch.commit: Cannot commit a batch multiple times.',
  );
  if (!this._hasChildren) {
    
    this._next = null;
    this._defer = false;
    return;
  }
  let expirationTime = this._expirationTime;
  
  if (firstBatch !== this) {