After selecting and completing the Lutscher course I used manual route options to follow the Innsbruckring course. My time for the Innsbruckring loop was recorded on the UCI lap in-game leaderboard and I was awarded the jersey (see screenshot). I’ve seen several other sub-20 minute times in the past which indicates this may be easy to recreate.
I did the exact same thing today, Lutscher route and all. After doing a full loop in downtown Innsbruck as a cool down after my climb, I too was awarded the orange jersey for just my loop of town.
+1 on this as a repeatable /verified bug . Been that way since the world was created and despite posting to support directly I never got a response and clearly neither was it fixed .