Suivi — Flux Atom Erreur interne sur le flux personnel de commentaires lorsque le compte n'a pas posté de commentaires

Exemple https://linuxfr.org/users/natal/comments.atom

F, [2014-08-31T07:43:22.526065 #23134] FATAL -- : 
ActionView::Template::Error (undefined method `created_at' for nil:NilClass):
    1: atom_feed do |feed|
    2:   feed.title("LinuxFr.org : les commentaires pour #{@user.try(:name) || @node.content.title}")
    3:   feed.updated((@comments.last || @node).created_at)
    4:   feed.icon("/favicon.png")
    5: 
    6:   @comments.each do |comment|
  app/views/comments/index.atom.builder:3:in `block in _app_views_comments_index_atom_builder___436111265112466474_68531700'
  app/views/comments/index.atom.builder:1:in `_app_views_comments_index_atom_builder___436111265112466474_68531700'
  app/controllers/users_controller.rb:64:in `block (2 levels) in comments'
  app/controllers/users_controller.rb:62:in `comments'