Version:           0.19+ #3115 (using KDE KDE 3.5.4)
Installed from:    Compiled From Sources
Compiler:          gcc (GCC) 4.1.2 20060715 (prerelease) (Ubuntu 4.1.1-9ubuntu1) 
OS:                Linux

While connecting to freenode, konversation identifies twice. 

On freenode I get this notice:
[Notice] -NickServ- You have already identified

Eike told me to add a debug line to Server::registerWithServices() (in server.cpp line 771)
kdDebug() << "Server: " << m_serverGroup->name() << "/" << m_serverGroup->serverByIndex(m_currentServerIndex).server() << " - Identifying" << endl;

And this turned out to show that konversation tries to identify twice to freenode.
I reproduced this by removing my configuration file and starting out with a new one. I tried another server, irc.starchat.net and it does not happen there.