/usr/share/gnome/help/glade/zh_CN/glade.xml is in glade 3.12.0-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/gnome/help/glade/zh_CN/../../../help-langpack/glade/zh_CN/glade.xml
/usr/share/gnome/help/glade/zh_CN/../../../help-langpack/glade/zh_CN/glade.xml