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.

return children;
        }
        var elementBefore = <View><Foo><View /></Foo></View>;
        var treeBefore = {
          displayName: 'View',
          children: [{
            displayName: 'Foo',
            children: [{
              displayName: 'View',
              children: [],
            }],
          }],
        };
        var elementAfter = <View><Foo><Image /></Foo></View>;
        var treeAfter = {
          displayName: 'View',
          children: [{
            displayName: 'Foo',
            children: [{
              displayName: 'Image',
              children: [],
            }],
          }],