[FIX] website_sale: Keep salesperson when editing portal partner

When editing the billing address of an existing portal partner P,
the salesperson of P was changed by the default website salesperson

BACKPORT of 52442484

opw:2649732

closes odoo/odoo#81043

Signed-off-by: Romain Derie (rde) <rde@odoo.com>

addons/website_sale/controllers/main.py

@@ -614,14 +614,13 @@ class WebsiteSale(http.Controller):
                 if k not in ('field_required', 'partner_id', 'callback', 'submitted'): # classic case
                     _logger.debug("website_sale postprocess: %s value has been dropped (empty or not writable)" % k)
 
-        new_values['team_id'] = request.website.salesteam_id and request.website.salesteam_id.id
-        new_values['user_id'] = request.website.salesperson_id and request.website.salesperson_id.id
-
         if request.website.specific_user_account:
             new_values['website_id'] = request.website.id
 
         if mode[0] == 'new':
             new_values['company_id'] = request.website.company_id.id
+            new_values['team_id'] = request.website.salesteam_id and request.website.salesteam_id.id
+            new_values['user_id'] = request.website.salesperson_id.id
 
         lang = request.lang.code if request.lang.code in request.website.mapped('language_ids.code') else None
         if lang: