WP Bug

<?php/*
Template Name: test
*/?>
<?php
    function get_pagenum_link2($pagenum = 1, $escape = true ) {
    global $wp_rewrite;

    $pagenum = (int) $pagenum;
    echo '<pre>';
    print_r($_SERVER);
    echo '</pre>';
    $request = remove_query_arg( 'paged' );
    echo 'req1'.$request.'<br/>';
    $home_root = parse_url(home_url());
    print_r($home_root);
    $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
    $home_root = preg_quote( $home_root, '|' );

    echo 'home'.$home_root.'<br/>';

    $request = preg_replace('|^'. $home_root . '|i', '', $request);
    $request = preg_replace('|^/+|', '', $request);
    echo 'req2'.$request.'<br/>';

    if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
        $base = trailingslashit( get_bloginfo( 'url' ) );

        if ( $pagenum > 1 ) {
            $result = add_query_arg( 'paged', $pagenum, $base . $request );
        } else {
            $result = $base . $request;
        }
    } else {
        $qs_regex = '|\?.*?$|';
        preg_match( $qs_regex, $request, $qs_match );

        if ( !empty( $qs_match[0] ) ) {
            $query_string = $qs_match[0];
            $request = preg_replace( $qs_regex, '', $request );
            echo 'req3'.$request.'<br/>';
        } else {
            $query_string = '';
        }

        $request = preg_replace( "|$wp_rewrite->pagination_base/\d+/?$|", '', $request);
        echo 'req4'.$request.'<br/>';
        $request = preg_replace( '|^' . preg_quote( $wp_rewrite->index, '|' ) . '|i', '', $request);
        echo 'req5'.$request.'<br/>';
        $request = ltrim($request, '/');
        echo 'req6'.$request.'<br/>';

        $base = trailingslashit( get_bloginfo( 'url' ) );

        if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) )
            $base .= $wp_rewrite->index . '/';

        if ( $pagenum > 1 ) {
            $request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( $wp_rewrite->pagination_base . "/" . $pagenum, 'paged' );
        }

        $result = $base . $request . $query_string;
    }

    /**
     * Filter the page number link for the current request.
     *
     * @since 2.5.0
     *
     * @param string $result The page number link.
     */
    //$result = apply_filters( 'get_pagenum_link', $result );

    if ( $escape )
        return esc_url( $result );
    else
        return esc_url_raw( $result );
    }

    $args = array(
        'post_type'=>'page'
    );

    query_posts($args);
    //wp_reset_query();
    echo get_pagenum_link2( 3 );
?>