Hi SomeoneElse, 
Change of classification was made due to inconsistency in tagging. As you can see in history, https://www.openstreetmap.org/way/843077021 was classified as track, but smaller segment leading to the house https://www.openstreetmap.org/way/843077022/history was classified as service. Therefor a track was connecting an unclassified road with a service segment. Since this service segment leads only to a house and seems to be inside a private courtyard, it seemed logical to align classification. I've reached out to some users, and they were in agreement that classification should be service rather than track. 
Thanks,
Olivera