highway lanes (error: forward+backward != both) most likely not an error if both_ways is used

[sun-geo]

The error: "forward+backward != both" seems wrong for cases when key both_ways is used, e.g.:

https://www.openstreetmap.org/way/114254926/history http://tools.geofabrik.de/osmi/?view=highways&lon=8.26605&lat=49.11674&zoom=18&overlays=lanes

Wiki's for both_ways:

• https://wiki.openstreetmap.org/wiki/Proposed_features/Suffix_both_ways
• https://wiki.openstreetmap.org/wiki/Key:lanes:both_ways

[deep-blue]

The key both_ways is not used in the code at all. Does anyone know how to contribute to this project?

[Nakaner]

Issue #53 is about the same and was fixed today.