[FIX] account: fix self.id.origin in get_last_sequence()

When trying to customize Swiss invoice report with QR-Bill
through Studio an error was thrown because it tries to _compute_name()
on a dummy 'account.move' record with self.id=0.

This is part of a more general task in master around report customization
but it make sense to backport the fix in all stable versions.

task-id:3492033

closes odoo/odoo#135722

X-original-commit: d95aae51a23ff163e959a1f3064f42a89cfaf516
Signed-off-by: Laurent Smet (las) <las@odoo.com>
Signed-off-by: Claire Bretton (clbr) <clbr@odoo.com>

addons/account/models/sequence_mixin.py

@@ -179,9 +179,9 @@ class SequenceMixin(models.AbstractModel):
         if self._sequence_field not in self._fields or not self._fields[self._sequence_field].store:
             raise ValidationError(_('%s is not a stored field', self._sequence_field))
         where_string, param = self._get_last_sequence_domain(relaxed)
-        if self.id or self.id.origin:
+        if self._origin.id:
             where_string += " AND id != %(id)s "
-            param['id'] = self.id or self.id.origin
+            param['id'] = self._origin.id
         if with_prefix is not None:
             where_string += " AND sequence_prefix = %(with_prefix)s "
             param['with_prefix'] = with_prefix