/usr/share/doc/ibus-qt4/changelog.Debian.gz is in ibus-qt4 1.3.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/ibus-qt4/../libibus-qt1/changelog.Debian.gz
/usr/share/doc/ibus-qt4/../libibus-qt1/changelog.Debian.gz