message: Remove spurious ...atributes in the wrong place
  We already have it above
diff: @@ -1473,7 +1473,6 @@ export default class MessageComposerInput extends React.Component {
  const { text } = node;
  return <a href={url} {...props.attributes}>
  { text }
  - {...attributes}
  </a>;
  }
  }
  