Merged revisions 257467 via svnmerge from

Merged revisions 257467 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r257467 | tilghman | 2010-04-15 15:24:50 -0500 (Thu, 15 Apr 2010) | 13 lines

  Don't recreate peer, when responding to a repeated deregistration attempt.

  When a reply to a deregistration is lost in transmit, the client retries the
  deregistration.  Previously, this would cause a realtime/autocreate peer to be
  loaded back into memory, after it had already been correctly purged.  Instead,
  we just want to resend the reply without loading the peer.

  (closes issue #16908)
   Reported by: kkm
   Patches:
         20100412__issue16908.diff.txt uploaded by tilghman (license 14)
   Tested by: kkm
........

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@257493 65c4cc65-6c06-0410-ace0-fbb531ad65f3