Sorry I'm not sure I understand, I will try to explain what I do. I survey by doing mapping runs on foot, sometimes taking pictures but mostly from memory which is why I cross-reference with SIG resources from the conçelhos, even though these are often out of date (hence why I use ground truth as priority). I do my updates in the OSM editor. Sometimes I do combine roads, but when only one is part of i.e., a bus route it comes up as an error: "These features can't be merged because they belong to conflicting relations." In which case I do not (and indeed cannot) combine. So I'm not sure how this happened. Can you provide example of a way relation I changed that caused an error so I can try to figure out what I did? Thanks for your time, I just want to avoid doing it again in the future.