keywords cannot be removed from entries

When editing existing keywords (no taxonomy), we were unable to remove existing keywords (new keywords could be added without problems). I inspected the following file:

// $Id: biblio.keywords.inc,v 1.6.2.13 2009/11/09 21:29:02 rjerome Exp $

The problem is that "biblio_update_keywords" passes "TRUE" to "biblio_save_keywords". As a result, biblio_save_keywords does NOT remove existing keywords. If I change this to "FALSE", then editing works (and I can remove keywords).

While this simple change works for my site, I did not make sure that this does not cause unexpected side-effects (such as not merging keyword lists when importing). However, the function is only called from "biblio_update" which seems to be only used for user-driven edits and hence this should be fine.

Given the one-line change, I'm not attaching a diff.