msgList = Core::requestMsgs(coreSession()->user(), bufferId, -1, last, additional);
msgIter = msgList.constBegin();
msgListEnd = msgList.constEnd();
msgList = Core::requestMsgs(coreSession()->user(), bufferId, -1, last, additional);
msgIter = msgList.constBegin();
msgListEnd = msgList.constEnd();