Hello,

I saw you wanted a review here.

The iD editor warned that you changed the train tracks… because indeed you added or removed signals.  But that is normal.  If we add or remove nodes to a way in OSM, the way itself changes.

I reviewed the geometry of the tracks and I can tell you that your edit seems fine; the overall geometry of the railway tracks is okay.

I don’t know about the location of signals but I observe that signals with ref=2 and ref=4 are very close to each other (21 cm).  Perhaps you may want to have a second look.
https://www.openstreetmap.org/node/7241012390
https://www.openstreetmap.org/node/11741716500

