[FIX] website_sale: default website team is set trough onchange

Steps to reproduce:
- Install eCommerce
- Check in website setting that the sales team is website
- Logout
- Without being logged, buy a product (all the cart flow, until the end)
- Once the flow is finished, connect with the admin
- Go to website > Orders > Unpaid Orders (since only wired is set when you create the db)
- Go to the tab "Other Info" of the SO you just created when buying the product

Previous behavior:
the sales team set in website settings is overriden during the
"/shop/address" endpoint

Current behavior:
the team set in website settings is used for sale orders coming from website

opw-2231654

closes odoo/odoo#51959

X-original-commit: 919077638bc9e8a5ad1c800b629aa0eaa079f571
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>
Signed-off-by: mightyjol <jhk-odoo@users.noreply.github.com>

addons/sale/models/sale.py

@@ -375,7 +375,8 @@ class SaleOrder(models.Model):
 
         if self.env['ir.config_parameter'].sudo().get_param('account.use_invoice_terms') and self.env.company.invoice_terms:
             values['note'] = self.with_context(lang=self.partner_id.lang).env.company.invoice_terms
-        values['team_id'] = self.env['crm.team']._get_default_team_id(domain=['|', ('company_id', '=', self.company_id.id), ('company_id', '=', False)],user_id=user_id)
+        if not self.env.context.get('not_self_saleperson') or not self.team_id:
+            values['team_id'] = self.env['crm.team']._get_default_team_id(domain=['|', ('company_id', '=', self.company_id.id), ('company_id', '=', False)],user_id=user_id)
         self.update(values)
 
     @api.onchange('user_id')