problem with i18n_get_normal_path

The problem above is present with all modules that send emails via cron (update_status, account_reminder, organic_groups, privatemsg, ...)

I modified the function which seems to solve the problem. I have not much experience with the url modification functions in drupal. Is there someone who can tell me if what i did makes any sense? I added the following code:

    if (function_exists('drupal_lookup_path')) {
      $path = drupal_lookup_path('source', $path);
    }

The whole function looks like this:

/**
 * This function is similar to drupal_get_normal_path, but language-aware
 * Also removes language from path
 */
function i18n_get_normal_path($path) {
  $prefix = i18n_get_lang_prefix($path, TRUE);
  if(!$prefix || _i18n_is_bootstrap()){
    // If bootstrap, drupal_lookup_path is not defined
    // Why not check if function exists?
    if (function_exists('drupal_lookup_path')) {
      $path = drupal_lookup_path('source', $path);
    }
    return $path; 
  } // First, check alias with lang
  elseif($alias = drupal_lookup_path('source', $prefix.'/'.$path)){
    i18n_get_lang_prefix($alias, TRUE); // In case alias has language
    return $alias;
  } // Check alias without lang
  elseif($alias = drupal_lookup_path('source', $path)){
    i18n_get_lang_prefix($alias, TRUE);
    return $alias;
  } 
  else {
    return $path;
  }
}

ups... that modification killed my site ;-) anybody with a better idea? The modification fixed the email messages but killed everything else including imagecache...

still no clue what could be done here... it just seems that function is getting the wrong urls when run by cron... any ideas?