Handle case when listbox is not a list but None.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@16600 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_pdf_style/SkinTemplateItem/portal_skins/erp5_pdf_style/listbox_pdf_macro.xml

@@ -73,7 +73,7 @@
                  is_report_tree_mode selection/report_tree_mode | nothing;" >\n
 \n
 \n
-    <tal:block tal:condition="python: len(listboxline_list) > 1" >\n
+    <tal:block tal:condition="python: listboxline_list is not None and len(listboxline_list) > 1" >\n
 \n
       <tal:block tal:condition="python: is_domain_tree_mode">\n
         <tal:block tal:define="domain_list python: selection.getDomainList()"\n

bt5/erp5_pdf_style/bt/revision

-48
+49
\ No newline at end of file