Blocked revisions 424787

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astobj2: Correct REF_DEBUG false leak report

When ao2_callback is run with OBJ_MULTIPLE and not OBJ_NODATA
it allocates a temporary container in a way that does not
record REF_DEBUG log entries.  This changes that container
to correctly record unref's when the container is freed.

ASTERISK-24390 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4047/
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Merged revisions 424786 from http://svn.asterisk.org/svn/asterisk/branches/1.8

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@424788 65c4cc65-6c06-0410-ace0-fbb531ad65f3