[Shotwell] Error using specific database directory

[Thierry Le Guillou]

Hello, I just migrate to Shotwell 0.8 and I am impressed by the great 
job. Bravo !
But since I cannot launch Shotwell with a specific database directory :

thierry:~$ shotwell -d /media/Aux/FotoTime/ShotwellDB
(shotwell:2015): GLib-CRITICAL **: g_utf8_collate_key: assertion `str != 
NULL' failed
(shotwell:2015): GLib-CRITICAL **: g_utf8_collate_key: assertion `str != 
NULL' failed
(shotwell:2015): GLib-CRITICAL **: g_utf8_collate_key: assertion `str != 
NULL' failed
Erreur de segmentation

is there something I missed ?

Standard lauching (.shotwell directory) has no problem, but for 
personnal backup need my photo collection is in on a special partition.



Thierry