an instance of a class can be true or false so we need to check if context is None instead

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@891 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/PDFTemplate.py

@@ -244,7 +244,10 @@ class ERP5ReportTool(ReportTool):
       Render document using template
     """
 
-    context = kwargs.get('context') or self
+    context = kwargs.get('context',None)
+    if context is None:
+      context = self
+
     encoding = kwargs.get('encoding') or 'iso-8859-1'
     rhandler = ERP5ResourceHandler(context, getattr(self, 'resourcePath', None))