Merged revisions 317867 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r317867 | russell | 2011-05-06 15:01:16 -0500 (Fri, 06 May 2011) | 10 lines
  
  chan_sip: Destroy variables on a sip_pvt before copying vars from the sip_peer.
  
  Don't duplicate variables on the sip_pvt.  Just reset the variable list each
  time.
  
  (closes issue #19202)
  Reported by: wdoekes
  Patches:
        issue19202_destroy_challenged_invite_chanvars.patch uploaded by wdoekes (license 717)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@317868 65c4cc65-6c06-0410-ace0-fbb531ad65f3