/usr/share/doc/gnupg-pkcs11-scd-dbg/changelog.Debian.gz is in gnupg-pkcs11-scd-dbg 0.7.3-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/gnupg-pkcs11-scd-dbg/../gnupg-pkcs11-scd/changelog.Debian.gz