Example: https://jsfiddle.net/gingur/u0h2rjae/1/

When generating **child context** with a stateless Component, the context is not available to the children.

var prevContext = this._context;
    this._pendingElement = null;
    this.updateComponent(
      transaction,
      prevElement,
      nextElement,
      prevContext,
      nextContext
    );
  },
  /**
   * If any of `_pendingElement`, `_pendingStateQueue`, or `_pendingForceUpdate`
   * is set, update the component.
   *
   * @param {ReactReconcileTransaction} transaction
   * @internal
   */
  performUpdateIfNecessary: function(transaction) {
    if (this._pendingElement != null) {
      ReactReconciler.receiveComponent(
        this,
        this._pendingElement,
        transaction,
        this._context
      );
    } else if (this._pendingStateQueue !== null || this._pendingForceUpdate) {
      this.updateComponent(
        transaction,
        this._currentElement,
        this._currentElement,