I am using bibliography module 7 to import a list of pubmed IDs. It generate the following bug:

An AJAX HTTP error occurred. HTTP Result Code: 500 Debugging information follows. Path: /?q=batch&id=59&op=do StatusText: Service unavailable (with message) ResponseText: PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'vid' cannot be null: INSERT INTO {biblio_keyword} (kid, vid, nid) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2); Array ( [:db_insert_placeholder_0] => 104 [:db_insert_placeholder_1] => [:db_insert_placeholder_2] => 25 ) in biblio_insert_keywords() (line 186 of biblio/includes/biblio.keywords.inc).

when importing the following IDs:

18697944
18767697
18654719

However it works on version 6.

It looks like that null is inserted into the primary key for keywords.