possible documentation bug (3.8 Limiting)

[Allan Gottlieb]

The second paragraph of this info node states

  All limiting commands work on subsets of the articles already
  fetched from the servers.  None of these commands query the server for
  additional articles.

However we find at the end of the info node

  `/ N'
       Insert all new articles in the summary buffer.  It scans for new
       emails if BACK-END`-get-new-mail' is non-`nil'.

  `/ o'
       Insert all old articles in the summary buffer.  If given a numbered
       prefix, fetch this number of articles.

allan

PS  Gnus 5.11 in emacs 22.3