I assumed that they will leave it like they've done with https://www.openstreetmap.org/way/1157841819.
> It's not on https://www.sofiatraffic.bg/interactivecard/ either.
It's hidden on the map but you can see it on their schedules website (http://schedules.sofiatraffic.bg/stop/314/zh-k-hipodruma, stop 6096 or 6135).