Shared link occasionally shows wrong route information

[koivunen]

Seems to be related to not having opened virma before or if there was a long break.
Hard to debug: Clearing the cache or using private browsing does not re-trigger the problem.

Example link (should open polvarin polku): https://kartta.virma.fi/?zoom=7&lat=6756787.60&lon=268262.72&layers=327+1304&X=269648.18&Y=6754955.73