/usr/lib/python2.7/dist-packages/trytond/modules/timesheet/view/hours_employee_tree.xml is in tryton-modules-timesheet 3.0.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/trytond/modules/timesheet/view/../../../../../../../share/pyshared/trytond/modules/timesheet/view/hours_employee_tree.xml