/usr/share/doc/libice6-dbg/changelog.Debian.gz is in libice6-dbg 2:1.0.7-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libice6-dbg/../libice6/changelog.Debian.gz
/usr/share/doc/libice6-dbg/../libice6/changelog.Debian.gz