Can't see updated details after updating them using IUserMaint

Hello,

I am trying to update User details using this code fragment:

IUserMaint maint = UMFactory.getUserFactory().getMutableUser(request.getUser().getUniqueID());
maint.setFirstName("Roy1");

the set method returns true which means that the update is successful. The problem is that I can't see the update anywhere. If I go to the User Management admin console for example and search my user I don't see any change there. I think it is also worth mentioning that I am connected to an LDAP using read only DS (dataSourceConfiguration_ads_deep_readonly_db.xml).

Any idea why this happen?

Roy