title: Keep scroll-y after rerender
body: <p>I have dropdown list with a lot of checkboxes, so this container has scroll. But when i click on any checkbox - it selects\deselects itself and then state changes. </p>
  
  <p>So the problem is that after rerendering this container is back to the top. Is it possible to keep container's scroll after rendering without saving it to the state?</p>