Error in function gmap_location_node_page

An error in gmap_location.module causes the function gmap_location_node_page not to produce the marker when the nid is supplied. The original code looks like this:

  $marker_sql1 = '';
  $marker_sql2 = '';
  if (module_exists('gmap_taxonomy')) {
    $marker_sql1 = ', m.marker';
    $marker_sql2 = 'LEFT JOIN {gmap_taxonomy_node} m ON n.vid = m.vid';
  }

  $add_sql = (is_numeric($nid) && $nid > 0) ? ' AND n.nid = %d' : '';
  // Location 3.x on Drupal 5.
  if (function_exists('location_newapi')) {
    $result = db_query(db_rewrite_sql("
      SELECT n.nid, n.type, n.title, l.latitude, l.longitude $marker_sql1
      FROM {node} n
      INNER JOIN {location_instance} i
        ON n.vid = i.vid
      INNER JOIN {location} l
        ON l.lid = i.lid
      $marker_sql2
      WHERE
        n.status = 1
      AND
        (l.latitude != 0 OR l.longitude != 0)
      ". $add_sql), 'node', $nid);
  }
  else {
    $result = db_query(db_rewrite_sql("
      SELECT n.nid, n.type, n.title, l.latitude, l.longitude $marker_sql1
      FROM {node} n
      INNER JOIN {location} l
        ON n.vid = l.eid
      $marker_sql2
      WHERE
        l.type = '%s'
      AND
        n.status = 1
      AND
        (l.latitude != 0 OR l.longitude != 0)
      ". $add_sql), 'node', $nid);
  }

The problem is in the first case of the condition and particularly in the line

 ". $add_sql), 'node', $nid);

The 'node' parameter is not valid in this query (no type criteria is included in the query) and the result is that the value 'node' is passed as the nid when the relevant criteria is added. If this is already corrected just ignore me. I just came across this issue and thought that it would be a good idea to let you know.