Version:           4.1.60 (using KDE 4.5.2) 
OS:                Linux

Add two files to a project

// file.h
class Class {
    void method();
};

// file.cpp
#include "file.h"

Now rename Class -> NewClass in file.h and add another method, so that the header looks like this:

class NewClass {
    void method(int arg);
    void newMethod();
};

Now invoke code completion in minimal.cpp - it offers to implement Class::method and Class:newMethod functions, and if executed, exactly these function definitions are created. This is wrong, because the class name is now NewClass.

Reproducible: Always