Gnome Boxes refuse to start any box.

Console log :

~> gnome-boxes

(gnome-boxes:7658): GLib-GObject-WARNING **: The property
GtkCellRendererPixbuf:follow-state is deprecated and shouldn't be used anymore.
It will be removed in a future version.
dremor@p6tse:~> gnome-boxes

(gnome-boxes:7676): GLib-GObject-WARNING **: The property
GtkCellRendererPixbuf:follow-state is deprecated and shouldn't be used anymore.
It will be removed in a future version.

(gnome-boxes:7676): Boxes-WARNING **: machine.vala:594: Failed to start
openSUSE-Tumbleweed-GNOME-Live-x86_64-Snapshot20151017-Media: Unable to start
domain: internal error: process exited while connecting to monitor:
spice-qemu-char: unsupported type: smartcard
allowed names: vdagent, usbredir
2015-10-29T19:04:05.715965Z qemu-system-x86_64: -chardev
spicevmc,id=charsmartcard0,name=smartcard: Failed to create chardev

Bug ID	952712
Summary	Gnome Boxes : Unable to start domain: internal error: process exited while connecting to monitor: spice-qemu-char: unsupported type: smartcard
Classification	openSUSE
Product	openSUSE Distribution
Version	Leap 42.1 RC1 1
Hardware	Other
OS	Other
Status	NEW
Severity	Normal
Priority	P5 - None
Component	GNOME
Assignee	bnc-team-gnome@forge.provo.novell.com
Reporter	egeorget@openmailbox.org
QA Contact	qa-bugs@suse.de
Found By	---
Blocker	---