Problem with aa object protection rule

[greg]

I had the following rule to protect a PurchaseOrder business object:

If NOT(LoggedInStaff IN PurchaseOrder.Requisitioner) Then
PROTECT PurchaseOrder.Reconciled FROM ALL EXCEPT Administrator

I found out today that it did not work. When I changed it to this form:

If NOT(LoggedInStaff.LoginName=PurchaseOrder.Requisitioner.LoginName) Then
PROTECT PurchaseOrder.Reconciled FROM ALL EXCEPT Administrator

It started working. Do you know what was wrong before?

[aware_support]

We confirm a bug related to the usage of NOT (... IN ...) construct in rules. This bug is fixed in the latest release.