[NEW] helpdesk_transfer_timesheet_to_task: assign the timesheets ticket to the linked task

helpdesk_transfer_timesheet_to_task/models/helpdesk_ticket.py

@@ -0,0 +1,12 @@
+from odoo import models, api, Command
+
+
+class HelpdeskTicket(models.Model):
+    _inherit = "helpdesk.ticket"
+
+    @api.onchange("task_id")
+    def _onchange_task_id(self):
+        for record in self:
+            if record.timesheet_ids and record.task_id:
+                not_yet_invoiced_timesheet_ids = [t.id for t in record.timesheet_ids if not t.timesheet_invoice_id]
+                record.task_id.timesheet_ids = [Command.link(t_id) for t_id in not_yet_invoiced_timesheet_ids]