There is no way to access Node information of original OSM Ways (except for start and end Nodes)

[coenenstijn]

Can anyone explain why the original Node information on a way is lost? Why is the osmId lost for these Nodes in between start and end nodes?
Is there any way to get to that information somehow?

[tsmock]

About the only way to get node information right now is to have an atlas file that did not drop unnecessary nodes -- this includes nodes that have no tags AND are part of a way BUT NOT part of an intersection with another way.

There was a recent release of atlas-generator that added a new flag -keepAll that keeps those nodes.
As of right now, the only way to get the original node information for a way is to iterate through the locations on the way and check and see if there is a point/node at that location in the atlas. If there is more than one point/node at that location, you won't be able to figure out which one is the actual node you want.