Just about every time I set up a new `Context.Provider`, I end up accidentally specifying a `values` prop rather than `value`.  While it's a minor error, generally I build the container in which the provider resides and commit it to the code base before I ever use it.  It's only later when I go to use it that I realize I did it again.  Since the `Context.Provider` seems pretty much useless without a `value` prop specified, I'd love it if there was a prop error if it is missing... especially if another prop is defined on the `Context.Provider` instead.
last.nextEffect = current;
      returnFiber.lastEffect = current;
    } else {
      returnFiber.firstEffect = returnFiber.lastEffect = current;
    }
    current.nextEffect = null;
    current.effectTag = Deletion;
    newWorkInProgress.effectTag |= Placement;
     Restart work from the new fiber.
    return newWorkInProgress;
  } else {
    throw new Error(
      'Did not expect this call in production. ' +
        'This is a bug in React. Please file an issue.',
    );
  }
}
function beginWork(
  current: Fiber | null,
  workInProgress: Fiber,
  renderLanes: Lanes,
): Fiber | null {
  const updateLanes = workInProgress.lanes;
  if (__DEV__) {
    if (workInProgress._debugNeedsRemount && current !== null) {
      
      return remountFiber(
        current,
        workInProgress,
        createFiberFromTypeAndProps(