in hotfix/2.0.12 branch Undefined index: wpfbogp_force_fallback

[chuckreynolds]

Notice: Undefined index: wpfbogp_force_fallback in /var/www/public/wp-content/plugins/WPFBOGP/wp-facebook-ogp.php on line 408

function wpfbogp_validate($input) {
    $input['wpfbogp_admin_ids'] = wp_filter_nohtml_kses($input['wpfbogp_admin_ids']);
    $input['wpfbogp_app_id'] = wp_filter_nohtml_kses($input['wpfbogp_app_id']);
    $input['wpfbogp_fallback_img'] = wp_filter_nohtml_kses($input['wpfbogp_fallback_img']);
    $input['wpfbogp_force_fallback'] = ($input['wpfbogp_force_fallback'] == 1)  ? 1 : 0;
    return $input;
}

[chuckreynolds]

hits when plugin page is saved