/usr/share/doc/libopenigtlink1.11-dbg/changelog.Debian.gz is in libopenigtlink1.11-dbg 1.11.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libopenigtlink1.11-dbg/../libopenigtlink1.11/changelog.Debian.gz