Merged revisions 122869 via svnmerge from

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

........
r122869 | file | 2008-06-16 09:08:28 -0300 (Mon, 16 Jun 2008) | 6 lines

Don't send a BYE on a dialog that is already gone during a REFER.
(closes issue #12865)
Reported by: flefoll
Patches:
      chan_sip.c.br14.121495.patch-ALREADYGONE uploaded by flefoll (license 244)

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@122870 65c4cc65-6c06-0410-ace0-fbb531ad65f3