Merged revisions 325821 via svnmerge from

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

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  r325821 | jrose | 2011-06-30 14:17:32 -0500 (Thu, 30 Jun 2011) | 10 lines
  
  Fixes an issue with Music on Hold classes losing files in playlist when realtime is used.
  
  The bug occurs rather intermittently and I relied on the reporters to test the patch.
  After a sanity check and some testing, I'm giving it an OK.
  
  (closes issue ASTERISK-17875)
  Reported by: David Cunningham
  Patches: 
        res_musiconhold.c.mohrt17875_v1 uploaded by Igor Goncharovsky (license #5009)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@325864 65c4cc65-6c06-0410-ace0-fbb531ad65f3