On June 11 in the live data, a new AC connector was listed, and the number 2 connector was modified from CHAdeMO to CCS.
The charger used to be an EVTEC coffee&charge, as seen on Chargemap pictures and Google Street View in 2022. Since the other connector IDs have not changed, I assume they modified the configuration of the existing charger. The physical change likely happened on June 6, because the number 2 connector was out of service, and then there were many short occupied periods on all connectors.
If it's still a coffee&charge, you cannot charge 2 cars on DC at the same time, and I've never seen one configured with 2xCCS, but I suppose it's absolutely possible. The live data since June 6 never shows concurrent sessions between connectors 1 and 2, except one time on June 10, but it's possible one car finished charging but stayed connected.