unique overlay not working correctly

[Sudhakar <sudhakar@co.brazos.tx.us>]

I have the following lines in my slapd.conf

*overlay unique
unique_base "ou=People,dc=mycompany,dc=us"
unique_attributes uid,mail,employeeNumber
unique_ignore 
objectClass,dc,ou,o,employeeType,displayName,cn,sn,telephoneNumber
*
The uniqueness constraint is enforced correctly for those attributes 
listed for unique_attributes. But When I try to enter two objects with 
the same employeeType attribute value, I get the following error even 
though I've explicitly listed under unique_ignore. This happens for 
displayName,cn,sn and telephoneNumber.

*conn=0 op=13 RESULT tag=103 err=19 text=some attributes not unique
*
From what I've read I don't have to state the unique_ignore parameter. 
But even listing this explicitly in the slapd.conf like above doesn't 
seem to solve my problem.

Any help I can get with this will be greatly appreciated.

Thanks
-sudhakar