Hi Christopher,

thanks for information and pointing to the sources.

Was it really necessary to revert the _entire_ changeset, because i assume the tagging of the lanes=* items was a minor part of the CS, beside of other changes, see graphical view: 
https://overpass-api.de/achavi/?changeset=133383356

Would you okay with a rerevert and afterwards updating the lanes to your mapping state of: https://www.openstreetmap.org/changeset/13084442 ?

Regards

ps: btw, did the construction works really reduce lanes from 2 to 1 for this: https://pewu.github.io/osm-history/#/way/4720933 segment? If so, how about is the state for the previous segment: https://www.openstreetmap.org/way/254348860 - Does the 'lanes' also has to be reduced (from 4 to 3) for it?

Regards