Rebuilding index: user error

Hi,

Thanks for a great module. I started to use the dev-version of this module last week and it is working great on all the sites except one. On all the sites I am running Drupal 6.19.

When I rebuild the index on one of my customers sites, I get this error message:

user error: Negative changecount value. Please report this to http://drupal.org/node/516928.
array ( 'type' => 'node', 'id' => '12025', 'subtype' => 'info_documents', 'status' => '1', 'status_default' => '1', 'status_override' => 0, 'priority' => '0.5', 'priority_default' => '0.5', 'priority_override' => 0, 'changefreq' => 0, 'changecount' => -1, 'loc' => 'node/12025', 'lastmod' => 0, 'access' => true, 'language' => '', ) in /var/www/sites/www.customersite.org/sites/all/modules/xmlsitemap/xmlsitemap.module on line 582.

It doesn't let me know if it has rebuilt the index or not, but the number of index entries seems to be correct.

Thanks,
Finn