Human Verification system question

[Scandal]

Hello all!
I use Human Verification System of vBulletin on one of my mods I develope.
For a start, I have the following question:
Well, on file includes/class_humanverify_question.php there is the following case:

PHP Code:

                // this happens if the hash gets killed somewhere between the update and select
                $this->error = 'humanverify_question_wronganswer';
                return false; 


What does this comment means?
In what cases we have this result?
What if I make it to return "true" instead of this error?

I try to make it return true and I don't detect problems with human verification system.

PS: I do it 'cause I have some problems with the human verification, will let you know once you inform me about the above. :up: