/usr/share/doc/htcondor/changelog.Debian.gz is in htcondor 8.6.8~dfsg.1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/htcondor/../libclassad8/changelog.Debian.gz
/usr/share/doc/htcondor/../libclassad8/changelog.Debian.gz