[O] No heading for this item in buffer or region

[Sebastien Vauban]

Hello,

Since the latest pull I did today (Org-mode release_7.9.3d-882-geab0cd), I now
have errors "No heading for this item in buffer or region" when generating the
agenda view.

They all are related to the fact I have a time-stamp (automagically updated by
Emacs when saving the file, if found in the first 8 lines) in my Org files:

--8<---------------cut here---------------start------------->8---
#+TITLE:     Work
#+AUTHOR:    Seb Vauban
#+Time-stamp: <2013-01-26 Sat 12:53>
#+DESCRIPTION: Work-related tasks
#+OPTIONS:   H:4 num:t toc:2
--8<---------------cut here---------------end--------------->8---

I know it looks like an Org active timestamp. Is that forbidden now?

Best regards,
  Seb

-- 
Sebastien Vauban