Allow multiple selection from the default form

At first glance, when adding/editing content, everything appears to be working well (I haven't done anything too complicated, though).

I did run into an error when trying to assign a editor to a section. Here's what I did:

1. Set my Workbench Access scheme (taxonomy) to allow multi-select - "Allow multiple section assignments" (admin/config/workbench/access/settings)
2. Went to "editorial assignments by editor" and selected one of the sections.
3. Attempted to add an existing user via the "Add editor" autocomplete text field (admin/config/workbench/access/editors/taxonomy/8) and clicked the "update editors" button
4. Received the following error:PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '5-8-taxonomy' for key 1: INSERT INTO {workbench_access_user} (uid, access_id, access_scheme) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2); Array ( [:db_insert_placeholder_0] => 5 [:db_insert_placeholder_1] => 8 [:db_insert_placeholder_2] => taxonomy ) in drupal_write_record() (line 6776 of /Users/michael/Sites/vcs/includes/common.inc).

I then tried truncating the "workbench_access_user" table and retried steps 2 and 3 from above. After I clicked the "update editors" button, I didn't receive an error, but the user wasn't listed as an editor either (although there was a new record in the "workbench_access_user" table. I then tried to repeat steps 2 and 3 again (without truncating the table), and received the same error as in step 4 above.

Thanks,
-mike

UPDATE - I did some more research and now do not think this is an issue with this patch - I had permissions incorrectly set and was trying to add a user that didn't have a role with the "Allow all members of this role to be assigned to Workbench Access sections" permission.

Thanks for adding multiselect, this will be key for the workflow I need to implement.

However, I've loaded the latest patch from June 23, and I'm getting multiple rows for the same content in My Workbench / My Content. A row for each section I've assigned the content to.

Thanks,
Jeff