*feature*

>Warning: A component is `contentEditable` and contains `children` managed by React. It is now your responsibility to guarantee that none of those nodes are unexpectedly modified or duplicated. This is probably not intentional.

It would help heaps if I would know _which_ component is causing this.
render() {
          return <div><Child1 /><Child2 /><Child3 /><Child4 /></div>;
        }
      }
      class Child1 extends React.Component {
        render() {
          return <div class="paladin">Child1</div>;
        }
      }
      class Child2 extends React.Component {
        render() {
          return <div>Child2</div>;
        }
      }
      class Child3 extends React.Component {