- Revert to sequential scan of the log connection vector when propagating
    messages: the direct access may not work when reconnecting on the same
    physical connection. Needs to optmize the way the vector is build.
  - Add missing protection


git-svn-id: http://root.cern.ch/svn/root/trunk@24800 27541ba8-7e3a-0410-8455-c3a389f83636