checkout_complete invoke in sermepa/callback

Hi,

i discover that the hook: hook_commerce_checkout_complete is invoked twice in some cases when i use commerce_sermepa. I attach an screenshoot and what i discovered.

Not sure if it is a general problem or not, but for me it is. In that hook is where we do some custom logic and stock decrease. It seems that sermepa/callback hook menu that is called asyncroniusly by TPV is firing it.

In the callback it is calling: commerce_sermepa_process_transaction and at the end of this function there is this code:

if ($redirect) {
    if ($transaction_status['code'] == COMMERCE_PAYMENT_STATUS_FAILURE) {
      commerce_payment_redirect_pane_previous_page($order);
    }
    else {
      commerce_payment_redirect_pane_next_page($order);
    }
  }

Not sure but i think that this callback must pass: FALSE to $redirect in:

function commerce_sermepa_process_transaction($order, $payment_method, $feedback_parameters, $redirect = TRUE) {

to avoid redirection. I think that depending of the order of the calls beetween this callback and the normal redirect of the TPV this function is calling this commerce_payment_redirect_pane_next_page that at the end calls hook_commerce_checkout_complete.

is this normal?

Best
David