title: Why do all Section Heading rows slide with table cell when i implement UITableViewRowAction
body: <p>I have the following swift code to implement a UITableViewRowAction, when I swipe a row the row slides out to the left as expected, however all the Section Header Rows also slide to the left with the table row at the same time.</p>
  
  <p>I have also included a screen shot to show what is happening</p>
  
  <p>If I remove the viewForHeader override and replace it with titleForHeaderInSection then I have no problem.</p>
  
  <p>The reason for overiding the viewForHeader is that I want to place an image in the Header Row.</p>
  
  <pre><code>override func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -&gt; UIView? {
  
      let cell = tableView.dequeueReusableCellWithIdentifier("header") as UITableViewCell
  
      cell.textLabel?.text = instrumentGroups[section].name
      cell.imageView?.image = UIImage(named: instrumentGroups[section].name)
  
      return cell
  }
  
  override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -&gt; InstrumentTableViewCell {
      let cell = tableView.dequeueReusableCellWithIdentifier("instrumentCell", forIndexPath: indexPath) as InstrumentTableViewCell
  
      cell.instrument = instrumentGroups[indexPath.section].instruments[indexPath.row]
  
      return cell
  }
  
  override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -&gt; [AnyObject]? {
  
      let instrument = instrumentGroups[indexPath.section].instruments[indexPath.row]
  
      var actions: [AnyObject] = []
  
      var action = UITableViewRowAction(style: .Normal, title: "Remove Watch") { (action, indexPath) -&gt; Void in
          tableView.editing = false
  
          instrument.SetWatchList(false)
  
          self.refresh()
      }
  
      action.backgroundColor = UIColor.redColor()
      actions.append(action)
  
      return actions
  }
  
  override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
  
  }
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/0vQCG.png" alt="As I slide the row to the left all the Section Rows slide as well"></p>