ProjeQtOr 8.5.4: All incl. Closed Activities Shown in Ticket for Selection

User malfunction or software malfunction?

I just upgraded from ProjeQtOr 8.0.5 to 8.5.4.

I currently only have the Tickets module enabled, nothing else.

Still, in 8.0.5 as well as 8.5.4, an already existing activity can be selected for Tickets. Ok, that's fine.

However, since the upgrade, also Closed Activities are shown in the dropdown list - in 8.0.5 only not-Closed Activities were shown. Is this change intentional?

BTW, if I press the magnifier glass next to the activity selection dropdown box, the selection dialog opens just showing the message that I don't have permissions to display activities. That's fine, I guess, since the Planning module is disabled, but in this case it's somehow strange I can still select Activities using the drop down list at all...