Erro saving Global Admin in iRedAdmin 0.2.1

==== Required information ====
- iRedMail version: 0.8.4 ??? Not sure after upgrading so many times...
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Linux/BSD distribution name and version: UBUNTU Precise
- Related log if you're reporting an issue:
====

When I check the "Global Admin" box in iRedAdmin 0.2.1 and click "Save" I get this error in the web interface.

Error: {'info': "attribute 'domainGlobalAdmin' not allowed", 'desc': 'Object class violation'}