Deterministic ordering of points with same sort order

[msbarry]

When 2 points have the same sort key, include the bytes when comparing them so that the ordering is deterministic.

Originally posted by @nyurik in https://github.com/onthegomap/planetiler/discussions/214#discussioncomment-2697226

[nyurik]

Technically this might not fully solve the issue. Osm allows two points to have identical coordinates (or they could get the same x,y during simplification). You might want to add tag sorting as the last fallback.

[bbilger]

Would you have some pointer for me where this sorting is happening currently? Then I'll take a look into this.