React warning from module_from_template

[rmorshea]

React produces the following warning:

react_devtools_backend.js:2574 Warning: unmountComponentAtNode(): The node you're attempting to unmount was rendered by React and is not a top-level container. You may have accidentally passed in a React root node instead of its container.

Because the element we pass to unmountElement is controlled by React. We should probably append a child node to the one controlled by React and pass that to the custom component interface elements.

[rmorshea]

I think this is resolved.