Errors when rolling back tags with non-ASCII characters and close to the limits

[deevroman]

For example here
https://www.openstreetmap.org/changeset/140149701
https://www.openstreetmap.org/changeset/140149670

Vandal added non ASCII symols that broke your reverter:

Failed to upload the changes (400) Value has more than 255 unicode characters in Node 777439407 at line 2, column 407782

[Zaczero]

The issue boils down to lack of Unicode normalization from the openstreetmap-website. This is an API bug that will be resolved with OpenStreetMap-NG project. I prefer to fix issues at their core and patching up just osm-revert does not seem like a feasible solution to me. The issue will sooner or later also affect other apps.