[FIX] open invoices report: when a fiscal year is selected, start from the first special period instead of the first period of the fiscal year. Otherwise outstanding invoices from previous years are not shown. (README states that it "shows open invoices from previous years")

account_financial_report_webkit/report/open_invoices.py

@@ -120,7 +120,7 @@ class PartnersOpenInvoicesWebkit(report_sxw.rml_parse,
         group_by_currency = self._get_form_param('group_by_currency', data)
 
         if main_filter == 'filter_no' and fiscalyear:
-            start_period = self.get_first_fiscalyear_period(fiscalyear)
+            start_period = self._get_first_special_period()
             stop_period = self.get_last_fiscalyear_period(fiscalyear)
 
         # Retrieving accounts