Merged revisions 142063 via svnmerge from

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

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r142063 | russell | 2008-09-09 10:40:24 -0500 (Tue, 09 Sep 2008) | 5 lines

Ensure that the stored CDR reference is still valid after the bridge before
poking at it.  Also, keep the channel locked while messing with this CDR.

(fixes crashes reported in issue #13409)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@142064 65c4cc65-6c06-0410-ace0-fbb531ad65f3