In hr_holidays, each allocation granted to an employee has a smart button to see the linked time off for this employee. The create button on the tree view that shows these time off opens the form with self.env.user.employee_id as default employee. This commit changes the default employee of the time off to be the one of the original allocation task-2844554 closes odoo/odoo#90739 Signed-off-by: Kevin Baptiste <kba@odoo.com>