fixed validator case where if a validator was given, new_params would not be initialized, resulting in a not found error.
fixed validator case where if a validator was given, new_params would not be
initialized, resulting in a not found error.

--HG--
extra : convert_revision : svn%3A77541ad4-5f01-0410-9ede-a1b63cd9a898/trunk%403915

lucius-feng/tg2,lucius-feng/tg2