anchor.diff:                      key: user
                       user: user
                       hide_face: @root.proposal_mode == 'crafting'
  +                    hide_name: @root.proposal_mode == 'crafting'
                       'data-segment':segment
                       style:
                         height: avatar_size
  
positive.code:   
    render : ->
      user = @data()
      @data(@local_key) # just to register a dependence
      className = "avatar #{if @props.className then @props.className else ''}"
  
      id = if @props.hide_face then "avatar-hidden" else "avatar-#{user.key.split('/')[2]}"
  
negative.code:     hide_face: false
  
    componentWillUpdate : -> 
      if @local.show_details && !@props.hide_name
        @insertUserName()
  
    insertUserName : ->
  