[UPD] Gimme more s***

Author: IJOL

sale_triple_discount/models/sale_order_line.py

@@ -110,17 +110,19 @@ def triple_discount_preprocess(self):
             vals = {fname: 0 for fname in self._discount_fields()}
             vals["discount"] = line._get_final_discount()
 
-            line.invalidate_recordset(self._discount_fields())
-            line._cache.update(vals)
+            # line.invalidate_recordset(self._discount_fields())
+            # line._cache.update(vals)
+            line.update(vals)
         return prev_values
 
     @api.model
     def triple_discount_postprocess(self, prev_values):
         """Restore the discounts of the lines in the dictionary prev_values.
         Updating the cache provides consistency through re-computations."""
         for line, prev_vals_dict in list(prev_values.items()):
-            line.invalidate_recordset(self._discount_fields())
-            line._cache.update(prev_vals_dict)
+            # line.invalidate_recordset(self._discount_fields())
+            # line._cache.update(prev_vals_dict)
+            line.update(prev_vals_dict)
 
     def _convert_to_tax_base_line_dict(self):
         self.ensure_one()