I noticed that this location does not appear in the M-CHARGE Android app. It's visible in the webapp.
Unfortunately this means I cannot confirm which EVSEID is 1.1 or 1.2, because in the IchTankeStrom and roaming data everywhere both connectors are just named "1", and the mobile app is the only place where I have found the EVSEIDs and charger numbers / UUIDs all in one place. I will have to visit and see which side has which EVSEID.