UnixCluster account created during enrollment flow despite configuration

A deployment has a self-signup with approval enrollment flow configured and "Establish Cluster Accounts" is NOT configured/ticked.

Despite that configuration, after the petition was approved a UnixCluster account was created and the posixAccount objectClass was provisioned to LDAP.

Since not every user is supposed to have a posixAccount, this should only happen for enrollment flows where it is specifically configured.