Export issues on multisite configurations — at Initial Version
|Reported by:||yoavf||Owned by:|
In 3.0, some changes were introduced to the export functions may fail on some multi sites configuration.
For example, 
This new query won't work on installations where the posts table and the users tables aren't on the same server.
$where .= $wpdb->prepare( "AND ID IN (SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d) ", $term_id );
This is flawed because it assumes the term_relationship object_id is the same as the term_id which might not always be the case (ie global tags configuration).
The attached patch fixes that by using get_objects_in_term() instead. The authors selection drop down code is reverted to pre-3.0 code.