Reset to quotation Shopify sale with insufficient authorized payment amount

Shopify order can be modified from the admin in such way that the total
increase and it is only partially paid.
In such case we must prevent to process the sale by resetting to quotation
until being fully paid.

Closes #13961

modules/web_shop_shopify/web.py

@@ -575,7 +575,18 @@ class Shop(metaclass=PoolMeta):
                 Decimal(order.current_total_price) - sale.total_amount)
         Sale.store_cache(to_update.keys())
         Amendment._clear_sale(to_update.keys())
-        Sale.__queue__.process(to_update.keys())
+        to_process, to_quote = [], []
+        for sale in to_update:
+            if sale.payment_amount_authorized >= sale.amount_to_pay:
+                to_process.append(sale)
+            else:
+                to_quote.append(sale)
+        if to_process:
+            Sale.__queue__.process(to_process)
+        if to_quote:
+            # Use write because there is no transition
+            Sale.write(to_quote, {'state': 'quotation'})
+            cls.log(to_quote, 'transition', 'state:quotation')
 
     @classmethod
     def check_modification(cls, mode, shops, values=None, external=False):