> report any issues that were missed by the old check. The new check
> failed to report these ways that were flagged by the old check in trunk:
> 200035193,220389737,25455464,42191422,53197410,131648853,50118184

Strange, after sorting I don't see a single difference for finland.

Please check:
When I split latest finland.osm.pbf with max-nodes=1000000
these ways are all close to tile boundaries
Results with my tiles:
200035193,42191422: not reported
220389737,25455464,53197410,131648853,50118184: reported by both checks

Please post one of your tiles (the input file) with a difference.

Attached is also the style that I use to test the dead-end-check.

Gerd