/usr/share/doc/python-pyqt5.qsci/changelog.Debian.gz is in python-pyqt5.qsci 2.10.2+dfsg-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python-pyqt5.qsci/../libqscintilla2-qt5-13/changelog.Debian.gz