     listController = @getListController channel.typeConstant
     item           = listController.itemForId channel.getId()
     listController.removeItem item
+    @updateTopicFollowButtons channel
 
 
   notificationHasArrived: (update) ->

      else {}

    return section.listController


  # fixme:

    channel        = revive channel
    listController = @getListController channel.typeConstant
    listController.addItem channel
    @updateTopicFollowButtons channel


  removeFromChannel: (channel) ->
