Ticket #1396: relatedobject.patch

django/template/__init__.py

@@ -641 +641 @@
                         current = current[int(bits[0])]
                     except (IndexError, ValueError, KeyError):
                         raise VariableDoesNotExist, "Failed lookup for key [%s] in %r" % (bits[0], current) # missing attribute
+                except Exception, e:
+                    if getattr(e, 'silent_variable_failure', False):
+                        current = settings.TEMPLATE_STRING_IF_INVALID
+                    else:
+                        raise
             del bits[0]
     return current