We purge it [here](https://github.com/facebook/react/blob/b11540ccb2321aeb7259fcf0b3a38aeeea35231d/src/isomorphic/ReactDebugTool.js#L88-L89) but this code doesn’t run because of the [early exit](https://github.com/facebook/react/blob/b11540ccb2321aeb7259fcf0b3a38aeeea35231d/src/isomorphic/ReactDebugTool.js#L53-L57).

Need to fix this and add a test case to make sure we don’t regress on it.

render() {
        return <Bar><h1>Hi.</h1></Bar>;
      }
    }
    function Bar({children}) {
      return <div>{children} Mom</div>;
    }
    
    
    var element = <article><Foo /></article>;
    var tree = {
      displayName: 'article',
      children: [{