Unset post data.

[eluser]brookerrj[/eluser]
I had the same problem and found this on another forum:

"The set_value function fetches its value from the Form_validation object and not from the $_POST array. The Form_validation object stores its own copy of the posted values in a variable called $_field_data."

So after success I used:

Code:

reset($this->form_validation->_field_data);

And it worked for me though considered a bit of a hack.