On Mon, 4 Jun 2018, Sven Schreiber wrote:
 Am 04.06.2018 um 18:13 schrieb Matteo Pelagatti:
> 
> I guess that 664903 is the internal representation of the date, but I would 
> have expected something like "2006-01-02".
> 
 Yes. Putting that number into the isodate() function yields 1821(-)06(-)11, 
 but I don't know if this means anything. (Why should that 19th century day be 
 a default pick?)
> Is this a bug, or I am missing something?
> 
> 
 Very much looks like one. 
Indeed. That should now be fixed in git and snapshots.
Allin