I'm having a problem with a webform that won't complete when it's submitted, it just keeps reloading the same page.

Here's my use case: I have [some reason] that I need to attach the submit handler to the submit button, rather than doing it in ['#submit'], but when I add them both here, the form won't complete.

My code:

  $form['actions']['submit']['#submit'] = array(
    'webform_client_form_pages',
    'webform_client_form_submit',
  );

I get to this part of the code in webform_client_form_pages() and it fails...

// The form is done if the page number is greater than the page count.
    $form_state['webform_completed'] = $form_state['storage']['page_num'] > $form_state['storage']['page_count'];

...because 'page_num' is equal to 'page_count'. Then, when webform_client_form_submit() fires, it bails out immediately because $form_state['webform_completed'] is FALSE.

Switching the greater-than check to greater-than-or-equal-to fixes my problem, but I wonder if there are risks to making this change? Why was it expected to be greater?

(On this site I only have single-page webforms)