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

Bug

**What is the current behavior?**

React Native for Web was broken by 16.5 as describe [here](https://github.com/necolas/react-native-web/issues/1096) due to this change https://github.com/facebook/react/pull/13539

**What is the expected behavior?**

Release a version of React that exports the EventPluginHub.

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

Worked in 16.4
two: parent.refs.P_P1,
        com: parent.refs.P_P1,
      },
      
      {
        one: parent.refs.P_P1_C1.refs.DIV_1,
        two: parent.refs.P_P1_C2.refs.DIV_1,
        com: parent.refs.P_P1,
      },
      
      {
        one: parent.refs.P_P1_C1.refs.DIV_1,
        two: parent.refs.P_OneOff,
        com: parent.refs.P,
      },
    ];
    let i;
    for (i = 0; i < ancestors.length; i++) {
      const plan = ancestors[i];
      const firstCommon = ReactTreeTraversal.getLowestCommonAncestor(
        ReactDOMComponentTree.getInstanceFromNode(plan.one),
        ReactDOMComponentTree.getInstanceFromNode(plan.two),
      );
      expect(firstCommon).toBe(
        ReactDOMComponentTree.getInstanceFromNode(plan.com),
      );
    }
  });
});