title: Jetpack compose doesn't recompose on mutableStateOf change
body: <p>I wanted to build a very simple demo. A button which you can click, and it counts the clicks.</p>
  <p>Code looks like this:</p>
  <pre><code>class MainActivity : ComponentActivity() {
      private var clicks = mutableStateOf(0)
  
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          setContent {
             Surface(color = MaterialTheme.colors.background) {
                  NewsStory(clicks.value) { onClick() }
             }
          }
      }
  
      private fun onClick() {
          clicks.value++
      }
  }
  
  @Composable
  fun NewsStory(clicks: Int, onClick: () -&gt; Unit) {
      Column(modifier = Modifier.padding(8.dp)) {
          Button(onClick = onClick) {
              Text(&quot;Clicked: $clicks&quot;)
          }
      }
  }
  </code></pre>
  <p>From my understanding this should be recomposed everytime the button is clicked, as <code>clicks</code> is changed.</p>
  <p>But it does not work, any ideas what I'm doing wrong here?</p>
  <p>I'm on <code>androidx.activity:activity-compose:1.3.0-beta01</code>, kotlin 1.5.10 and compose version 1.0.0-beta08</p>