alternative_routes together with extra_info will provide wrong extra_info

[TheGreatRefrigerator]

Here's what I did

request to
https://api.openrouteservice.org/v2/directions/driving-car/geojson
body:

{"preference":"fastest","language":"en-US","instructions":true,"geometry":true,"units":"m","attributes":["detourfactor","percentage"],"instructions_format":"html","elevation":true,"coordinates":[[8.507195,48.946406],[8.50771,48.953142]],"alternative_routes":{"target_count":3},"extra_info":["steepness","waytype","surface"]}

using alternative_routes and some extra_info value.

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Here's what I got

The waypoint number the extra info index refers to (34+) is out of bounds of the coordinates array for the current route (32 points).

The extras response property for each route contain the segments of all 3 routes if the coordinate arrays of all routes would be merged.

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Here's what I was expecting

extras objects should only contain the segments of the route they are placed in.

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Here's what I think could be improved

Tests for newly implemented parameters that also cover using the new parameter with existing parameters.