r24856 was not falling back to gap id correctly. fix this

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@25476 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/Account_getGapId.xml

@@ -66,16 +66,13 @@ if number_method == \'account_reference\':\n
   if reference:\n
     return reference\n
 \n
-# elif number_method == \'gap_id\':\n
-else:\n
-  # GAP id is the default rendering\n
-\n
-  current_gap = preference_tool.getPreferredAccountingTransactionGap()\n
-\n
-  for gap in context.getGapValueList() : \n
-    if current_gap in gap.getPath() : \n
+## elif number_method == \'gap_id\':\n
+# GAP id is the default rendering\n
+current_gap = preference_tool.getPreferredAccountingTransactionGap() or \'\'\n
+for gap in context.getGapValueList(): \n
+  if current_gap in gap.getPath(): \n
      return gap.getReference() or gap.getId()\n
-  return \'\'\n
+return \'\'\n
 </string> </value>
         </item>
         <item>

bt5/erp5_accounting/bt/revision

-861
+862
\ No newline at end of file