[Design] Chandler IMAP folders and the mail-stamp

[Jeffrey Harris]

> Yes, for instance: I emailed a recurring event for our 1:1 to Heikki
> long time ago and I have countless "1:1 Heikki" items in the Done
> section when displaying emails, even though I *never* edited those
> individual events.
> 
>> What is the reason for this behavior? I don't remember anymore ;)
> 
> I don't know either but, whatever it was, it sure doesn't seem
> commensurate with the permanent annoyance it creates :)

This is in no way intentional.  It's sometimes, if not always, a symptom
of the "mail items are changed when they shouldn't be" class of bugs.

For a while we were randomizing headers when sharing mail messages,
including modifications to recurring events.  That by itself would cause
what Philippe was seeing, thankfully that specific bug is fixed.  I
think we've still seen other bugs in this class, though.

Sincerely,
Jeffrey