@Composable
fun Test() {
  var items by remember {
    mutableStateOf(
      mutableListOf(
        1,
        2,
        3,
      )
    )
  }

  LazyColumn {
    items(items) {
      Box(
        modifier = Modifier
          .fillMaxWidth()
          .height(100.dp)
          .clickable {
            val list = items
            list[0] = 6
            items = list // this does not make the list to recompose
            items = mutableListOf(6,2,3) // this does not work either
            items = mutableListOf(6,3,2) // this makes the list to recompose
          },
        contentAlignment = Alignment.Center,
      ) {
        Text(text = it.toString(), fontSize = 50.sp)
      }
    }
  }
}

1.0.0-beta02

mutableListOf

mutableStateListOf

val items by remember { mutableStateListOf(1, 2, 3) }

items