When starting a new chat sometimes backlog history contains duplicates, I think it can end up showing both log messages and the newly received message at the time of opening the window.
Git commit 4d17b9e8d7cae54d1e791f2f0bd5a1212a32b1b1 by Dan Vrátil. Committed on 31/08/2013 at 13:55. Pushed by dvratil into branch 'master'. Exclude enqueued messages from scrollback Reviewed-By: David Edmundson M +12 -0 lib/logmanager.cpp http://commits.kde.org/telepathy-text-ui/4d17b9e8d7cae54d1e791f2f0bd5a1212a32b1b1