+ connect(bufferSyncer(), SIGNAL(buffersPermanentlyMerged(BufferId, BufferId)), this, SLOT(buffersPermanentlyMerged(BufferId, BufferId)));
+ connect(bufferSyncer(), SIGNAL(buffersPermanentlyMerged(BufferId, BufferId)), _messageModel, SLOT(buffersPermanentlyMerged(BufferId, BufferId)));
+ connect(bufferSyncer(), SIGNAL(initDone()), this, SLOT(requestInitialBacklog()));
+ connect(networkModel(), SIGNAL(setLastSeenMsg(BufferId, MsgId)), bufferSyncer(), SLOT(requestSetLastSeenMsg(BufferId, const MsgId &)));