Javascript files needed for a GMap are being added twice

This one is part of META issue #1931138: Fixing all 'single marker' issues

I'm adding a gmap from a .tpl, this is my code:

$map = array();
$map['markers'] = $markers;

$element = array(
  '#type' => 'gmap',
  '#gmap_settings' => $map,
);
$output = drupal_render($element);
print_r($output);

The map is loaded succesfully but the JS libraries are being added twice on header. My temporary workaround was to comment line 983 from gmap.module.

// Track the mapids we've used already.
  static $mapids = array();

  //_gmap_doheader(); <-- comment this line

  $mapid = FALSE;
  if (isset($element['#map']) && $element['#map']) {