I did not create the caravan_site. It was created in 2017. 

But I did update it with a link to jura-tourism. That website has a photo with a motorhome icon. I found the same place on Mapillary 2021 without the motorhome sign, but the image on the Jura tourism website has a 2022 timestamp, so I presume that the city did designate it as a motorhome stopover a couple of years ago or recognized it by putting up the sign.