SCHEDULED timestamp becoming empty

["Sebastien Vauban" <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org>]

Hello,

Maybe it's some sort of conflict with custom settings I would have (though, I
don't see what could cause such a thing) but I've observed for a couple of
weeks (maybe 3 or 4) that changing the SCHEDULED date *from* the agenda view
(S-left'ing) removes the timestamp part, leaving such a task:

--8<---------------cut here---------------start------------->8---
** Do this
   SCHEDULED: 
--8<---------------cut here---------------end--------------->8---

This is not 100% reproducible. On the contrary, it seems to be the case for
the first update only, not the following ones done in the same agenda view
(for tasks from the same file?  for all?).

I still don't get the exact conditions which are necessary to make that update
fail, but I wonder if I'm alone or not?

Hopefully, I'm working with Git'ted files, so such cases are identified
easily, but this is quite scary nonetheless.

Best regards,
  Seb

-- 
Sebastien Vauban