I had a change denied because I didn’t attach open source evidence, so it was my fault, but because it got contested I couldn’t just redo the change.
An account vetting system would solve this. Being an official municipality it’s kind of silly that we can change the actual direction of a street, but not use our internal maps as evidence for it. ;)
That shouldn't be a problem as long as you provide sources for a contested change. E.g., a photograph of the road signs, or simply explaining who you are in a comment on the changeset that reverted your edit and providing a screenshot of your internal maps.
Most local mappers will gladly work with you in resolving such issues. Try the country-specific subforum on https://forum.openstreetmap.org/ if you get stuck.
An account vetting system would solve this. Being an official municipality it’s kind of silly that we can change the actual direction of a street, but not use our internal maps as evidence for it. ;)