/usr/share/doc/liblemonldap-ng-conf-perl/changelog.Debian.gz is in liblemonldap-ng-conf-perl 1.4.6-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/liblemonldap-ng-conf-perl/../liblemonldap-ng-common-perl/changelog.Debian.gz