backup_migrate module seems to have a bug that causes a 'duplicate table'

New version of backup_migrate module seems to have a bug that causes a 'duplicate table' error in the Drupal update script [Backup and Migrate 6.x-2.x-dev (2009-Apr-06)]

* user warning: Duplicate column name 'filters' query: ALTER TABLE backup_migrate_profiles ADD `filters` TEXT DEFAULT NULL in /public_html/domain.com/includes/database.mysql-common.inc on line 298.
* user warning: Duplicate column name 'source_id' query: ALTER TABLE backup_migrate_profiles ADD `source_id` VARCHAR(32) NOT NULL DEFAULT 'db_url:default' in /public_html/domain.com/includes/database.mysql-common.inc on line 298.
* user warning: Can't DROP 'compression'; check that column/key exists query: ALTER TABLE backup_migrate_profiles DROP compression in /public_html/domain.com/includes/database.mysql-common.inc on line 322.
* warning: array_merge() [function.array-merge]: Argument #2 is not an array in /public_html/domain.com/update.php on line 174.
* warning: Invalid argument supplied for foreach() in /public_html/domain.com/update.php on line 338.

Ignoring the error is sufficient since the problem goes away.
When it happened with one site I thought that it was an issue isolated to the specific module and configuration blend of that site, but the issue has happened after that, so it seems to be a consistent problem with this module when running the update.php schema update script