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

Bug

**What is the current behavior?**

when typing in a controlled input, the cursor always jumps to the end. This was an old issue that seems to have resurfaced.

[this code pen](https://codepen.io/gaearon/pen/VmmPgp?editors=0010) used in the docs [here](https://reactjs.org/docs/forms.html#controlled-components)  has the problem in all browsers as far as I have been able to test.

**What is the expected behavior?**

because we are using the state to update the component as soon as it's changed, the input element should be able to keep the cursor in the same place.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

I'm at latest (16.8.2) and I tested on Chrome, FireFox, and Edge on Windows

as far as I know, this was working at some point, though I don't know how long ago. possibly even before "Fiber"


return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Scheduler.unstable_getFirstCallbackNode.apply(
      this,
      arguments
    );
  }
  function unstable_pauseExecution() {
    return undefined;
  }
  function unstable_continueExecution() {
    return undefined;
  }
  return Object.freeze({
    unstable_now: unstable_now,
    unstable_scheduleCallback: unstable_scheduleCallback,
    unstable_cancelCallback: unstable_cancelCallback,
    unstable_shouldYield: unstable_shouldYield,
    unstable_runWithPriority: unstable_runWithPriority,
    unstable_next: unstable_next,
    unstable_wrapCallback: unstable_wrapCallback,
    unstable_getCurrentPriorityLevel: unstable_getCurrentPriorityLevel,
    unstable_continueExecution: unstable_continueExecution,
    unstable_pauseExecution: unstable_pauseExecution,
    unstable_getFirstCallbackNode: unstable_getFirstCallbackNode,
  });
});