fix(Ref) Add a workaround for findDomNode to work with React 16.6.0 #3258
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This is a workaround for the following issue: #3255
React 16.6.0 throws an error if
findDOMNodeis called on an unmounted component which is the case inenzyme'sshallowcomponent testing.Please consider this change as a temporary workaround until there's a better way to handle
findDOMNode. React states that it's an antipattern to use it incomponentDidMount.