Z8's administrative accounts not displayed in AdminUI -- is there a switch?

[dvirt]

In Z7's AdminUI, @ "Manage Accounts", all of my named accounts AND all the administrative accounts (galsync, ham, spam, ...) are listed.

In Z8's AdminUI, @ Home - Manage - Accounts, all of my named accounts are similarly listed
BUT, I see none of the administrative accounts.

'zmprov -l gaa' @ cmd line lists the accounts -- I just can't see them in the UI.

Is there a setting/toggle I've missed to disaply them in the UI?

EDIT: --> https://bugzilla.zimbra.com/show_bug.cgi?id=78320