/usr/share/doc/golang-go-semver-dev/changelog.Debian.gz is in golang-go-semver-dev 0.2.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/golang-go-semver-dev/../golang-github-coreos-go-semver-dev/changelog.Debian.gz