[FIX] payment_stripe, website_quote, website_sale: update SO

A side effect of commit b9d1239eff if that the method `sale_get_order`,
which is used to retrieve the SO, will also update information on this
SO (change partner, change pricelist...). We therefore need another way
to retrieve the SO.

opw-692919

addons/payment_stripe/static/src/js/stripe.js

@@ -47,8 +47,14 @@ odoo.define('payment_stripe.stripe', function(require) {
             return false;
         }
 
+        var so_token = $("input[name='token']").val();
+        var so_id = $("input[name='return_url']").val().match(/quote\/([0-9]+)/);
+        if (so_id) {
+            so_id = parseInt(so_id[1]);
+        }
+
         e.preventDefault();
-        ajax.jsonRpc('/shop/payment/transaction/' + acquirer_id, 'call', {}).then(function (data) {
+        ajax.jsonRpc('/shop/payment/transaction/' + acquirer_id, 'call', {'so_id': so_id, 'so_token': so_token}).then(function (data) {
             $form.html(data);
             handler.open({
                 name: $("input[name='merchant']").val(),

addons/website_quote/controllers/main.py

@@ -30,7 +30,6 @@ class sale_quote(http.Controller):
 
         if not Order:
             return request.render('website.404')
-        request.session['sale_order_id'] = Order.id
 
         days = 0
         if Order.validity_date:

addons/website_sale/controllers/main.py

@@ -771,7 +771,7 @@ class WebsiteSale(http.Controller):
             return request.redirect("/shop/payment?error=no_token_or_missmatch_tx")
 
     @http.route(['/shop/payment/transaction/<int:acquirer_id>'], type='json', auth="public", website=True)
-    def payment_transaction(self, acquirer_id, tx_type='form', token=None):
+    def payment_transaction(self, acquirer_id, tx_type='form', token=None, **kwargs):
         """ Json method that creates a payment.transaction, used to create a
         transaction when the user clicks on 'pay now' button. After having
         created the transaction, the event continues and the user is redirected
@@ -781,7 +781,16 @@ class WebsiteSale(http.Controller):
                                 user is redirected to the checkout page
         """
         Transaction = request.env['payment.transaction'].sudo()
-        order = request.website.sale_get_order()
+
+        # In case the route is called directly from the JS (as done in Stripe payment method)
+        so_id = kwargs.get('so_id')
+        so_token = kwargs.get('so_token')
+        if so_id and so_token:
+            order = request.env['sale.order'].sudo().search([('id', '=', so_id), ('access_token', '=', so_token)])
+        elif so_id:
+            order = request.env['sale.order'].search([('id', '=', so_id)])
+        else:
+            order = request.website.sale_get_order()
         if not order or not order.order_line or acquirer_id is None:
             return request.redirect("/shop/checkout")