Merged revisions 168546 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r168546 | tilghman | 2009-01-13 11:48:00 -0600 (Tue, 13 Jan 2009) | 6 lines
  
  If either conditional is NULL, don't try copying it.
  (closes issue #14226)
   Reported by: caspy
   Patches: 
         20090113__bug14226.diff.txt uploaded by Corydon76 (license 14)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@168547 65c4cc65-6c06-0410-ace0-fbb531ad65f3