amount_generator: fix variable name

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42272 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/mixin/amount_generator.py

@@ -225,7 +225,7 @@ class AmountGeneratorMixin:
           continue
         key = cell.getCellAggregateKey()
         try:
-          application_dict = cell_aggregate[key]
+          property_dict = cell_aggregate[key]
         except KeyError:
           cell_aggregate[key] = property_dict = {
             'base_application_set': set(),