--- roundup/cgi/templating.py.orig	2008-09-01 03:44:30.000000000 +0200
+++ roundup/cgi/templating.py	2009-01-30 23:14:06.000000000 +0100
@@ -1713,6 +1713,10 @@
         if not self._value:
             return ''
         elif format is not self._marker:
+            std_now = self._value
+            if type(std_now) == type(""):
+                return std_now
+            else:
             return self._value.local(offset).pretty(format)
         else:
             return self._value.local(offset).pretty()