title: Not able to cast __SwiftDeferredNSArray to NSMutableArray
body: <p>I have an array defined like so..</p>
  <pre><code>var filteredData = [[String: Any]]()
  </code></pre>
  <p>But when I try to convert it like so,</p>
  <pre><code>      var filteredArray = filteredData as! NSMutableArray //CRASH HERE
        dic =  filteredArray[indexPath.row] as! NSMutableDictionary
        cell.Sched_celltitle.text = &quot;\(dic[&quot;name&quot;]!)&quot;
  </code></pre>
  <p>I get a crash like mentioned above saying <code>Could not cast value of type 'Swift.__SwiftDeferredNSArray' (0x103..) to 'NSMutableArray' (0x200..).</code></p>