title: Remove two items in RecyclerView instancely, the last item appear duplicated
body: <p>I have a function that remove two rows of my <code>RecyclerView</code> (writen in Kotlin) that contain 1,2,3,4,5,6,7,8. I expect to have remain 1,4,5,6,7,8</p>
  
  <pre><code>fun remItemFromList() {
      itemList.remove(1)
      notifyItemRemoved(1)
      itemList.remove(1)
      notifyItemRemoved(1)
  }
  </code></pre>
  
  <p>Upon execute the function, the last item i.e. double 8 appear, as per illustrated in the GIF below. Why, and how to solve this?</p>
  
  <p><a href="https://i.stack.imgur.com/Jnfil.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Jnfil.gif" alt="enter image description here"></a></p>