title: Saveinbackgroundwithblock not executing
body: <p>I am new to using swift/<strong>Parse</strong> and am having difficulty updating a user column in _User. The issue is that <strong>Parse</strong> is already running <code>getObjectinBackgroundWithId</code>, and the <code>saveInBackground</code> does not run (no success or error). If I run <code>saveInBackgroundWithBlock</code> without retrieving the user by their id, I have no problem saving.</p>
  
  <pre><code>    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
      var current = PFUser.currentUser().objectId
      var userId = self.dictionary[indexPath.row]["userId"]
      var query = PFQuery(className: "_User")
      var user: PFObject?
      self.query.getObjectInBackgroundWithId(userId) {
          (success: PFObject!, error: NSError!) -&gt; Void in
          if success != nil {
              success.addUniqueObject(current, forKey: "friendRequest")
              user = success
          }
      }
      var cell = tableView.cellForRowAtIndexPath(indexPath)
      if cell?.accessoryType == UITableViewCellAccessoryType.Checkmark {
          cell?.accessoryType = UITableViewCellAccessoryType.None
      }
      else {
          self.searchController.active = false
          let alertController = UIAlertController(title: "Alert", message: "Are you sure you want to add \(cell!.textLabel!.text!) to your friends?", preferredStyle: .Alert)
  
          let OKAction = UIAlertAction(title: "Yes", style: .Default) { (action) in
              user!.saveInBackgroundWithBlock {
                  (success: Bool!, error: NSError!) -&gt; Void in
                  if success == true {
                      println("worked")
                  }
                  else {
                      println(error)
                  }
              }
          }
          alertController.addAction(OKAction)
          let cancelAction = UIAlertAction(title: "No", style: .Cancel) { (action) in
          }
          alertController.addAction(cancelAction)
          self.presentViewController(alertController, animated: true) {
          }
      }
  }
  </code></pre>
  
  <p>Any help would be greatly appreciated! Thanks</p>