anchor.diff:    componentWillReceiveProps(nextProps) {
       if (nextProps.uid !== this.state.uid) {
         // a different note is shown.
  +      this.shouldRerender = true;
         this.setState({
           uid: nextProps.uid,
           title: nextProps.title,
  
positive.code:   }
  
    handleTitleChange(e) {
      this.setState({ title: e.target.value }, this.handleChange);
    }
  
    handleContentChange(e) {
      this.setState({ content: this.$content.html() }, this.handleChange);
    }
  
  
negative.code:       title: this.props.title,
        content: this.props.content
      };
  
      this.shouldRerender = true;
    }
  
    render() {
  