from odoo import models class AccountMoveReversal(models.TransientModel): _inherit = 'account.move.reversal' def reverse_moves(self, is_modify=False): if is_modify: moves = self.move_ids.filtered(lambda m: m.move_type == 'out_invoice') timesheets_sudo = self.env['account.analytic.line'].sudo().search([ ('timesheet_invoice_id', 'in', moves.ids), ]) if timesheets_sudo: timesheets_sudo.write({'timesheet_invoice_id': False}) return super().reverse_moves(is_modify)