Durations stack

[Orange]

When I have a previous-turn duration, then open my new turn with the same duration, they stack instead of having some way to show they are from different turns.  So for instance, I have 2 Lighthouses in play from last turn.  My first play this turn is a Lighthouse.  The display shows me and my opponents a Lighthouse with a "3" in the corner.  It would be nice if it was clear from the display which are from which turn.