Version is my patched version #362435: Update to drupal 6, but this bug does also apply to D5 with translation module.

The module produces error messages when copying fields of multilanguage nodes. However, the fields get copied like expected but the path alias for the translated nodes is reseted (instead of /content/cui-gilvus-voco-adipiscing it shows /node/78).

Example of a node with three languages (en,de,es):

user warning: Duplicate entry 'content/cui-gilvus-voco-adipiscing-en' for key 2 query: UPDATE url_alias SET src = 'node/78', dst = 'content/cui-gilvus-voco-adipiscing', language = 'en' WHERE dst = 'content/cui-gilvus-voco-adipiscing' in /drupal/modules/path/path.module on line 108.
user warning: Duplicate entry 'content/cui-gilvus-voco-adipiscing-de' for key 2 query: UPDATE url_alias SET src = 'node/101', dst = 'content/cui-gilvus-voco-adipiscing', language = 'de' WHERE dst = 'content/cui-gilvus-voco-adipiscing' in /drupal/modules/path/path.module on line 108.
user warning: Duplicate entry 'content/cui-gilvus-voco-adipiscing-es' for key 2 query: UPDATE url_alias SET src = 'node/102', dst = 'content/cui-gilvus-voco-adipiscing', language = 'es' WHERE dst = 'content/cui-gilvus-voco-adipiscing' in /drupal/modules/path/path.module on line 108.