Autocomplate of arguments doesn't work when overwriting function of base class in children class

Autocomplate of arguments doesn't work when you try to overwrite function.
For example:
Base class has function:
void createConfigurationInterface(KConfigDialog *parent);
Then you try to overwrite this function in children class:
void crea - (Step1) There ok, autocomlate show correct function name which you could overwrite and correct parametrs for her. Click Enter.
void createConfigurationInterface(); - (Step2) And there is the problem. The only things is autocomplete is showing - empty closing parenthesis ")" with no arguments at all.
But if you delete there "();" and type "(" - (Step3) there will be shown correct arguments.