Description of problem:
Gnome-scan crashes a few seconds after being launched while determining the scanner capabilities.

Version-Release number of selected component (if applicable):
0.6.2-7

How reproducible:
Every time: just connect the device and launch the gnome-scan application.

Steps to Reproduce:
1. connect the scanner to any usb port
2. launch gnome-scan
3.
  
Actual results:
flegita crashes with a segmentation fault

Expected results:
gnome-scan lists the available devices and let you proceed with the "scanning activities" 

Additional info:

The device is a HP DeskJet F2200 All-in-one scanner/printer. Xsane and scanimage work as expected.
This is the log printed by directly launching the application "flegita" from the command line. 

** (flegita:15189): DEBUG: Initializing gnome-scan 0.6.2 for flegita (flegita)
** (flegita:15189): DEBUG: gsane-module.c:39: SANE version is 1.0.22
** (flegita:15189): DEBUG: Ignoring virtual device v4l:/dev/video0
** (flegita:15189): DEBUG: SANE device v4l:/dev/video0 failed or ignored
** (flegita:15189): DEBUG: Number of options ():
** (flegita:15189): DEBUG:  gint none (GParamInt), (null)
** (flegita:15189): DEBUG:  default = 17 ; flags = {writable}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG:  === Device Hewlett-Packard Deskjet_F2200_series (17 options) ===
** (flegita:15189): DEBUG: 

** (flegita:15189): DEBUG:  -- Group « Scan mode » --
** (flegita:15189): DEBUG: Scan mode (mode):
** (flegita:15189): DEBUG:  gchararray none (GSParamEnumSpec), {"Lineart", "Gray", "Color"}
** (flegita:15189): DEBUG:  default = "Color" ; flags = {writable}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG: Scan resolution (resolution):
** (flegita:15189): DEBUG:  gint dpi (GSParamRangeSpec), [75;1;1200]
** (flegita:15189): DEBUG:  default = 75 ; flags = {writable}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG: 

** (flegita:15189): DEBUG:  -- Group « Advanced » --
** (flegita:15189): DEBUG: Contrast (contrast):
** (flegita:15189): DEBUG:  gint none (GSParamRangeSpec), [0;1;100]
** (flegita:15189): DEBUG:  default = 50 ; flags = {}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG: Compression (compression):
** (flegita:15189): DEBUG:  gchararray none (GSParamEnumSpec), {"None", "JPEG"}
** (flegita:15189): DEBUG:  default = "JPEG" ; flags = {writable}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG: JPEG compression factor (jpeg-quality):
** (flegita:15189): DEBUG:  gint none (GSParamRangeSpec), [0;1;100]
** (flegita:15189): DEBUG:  default = 10 ; flags = {writable}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG: Batch scan (batch-scan):
** (flegita:15189): DEBUG:  gboolean none (GParamBoolean), (null)
** (flegita:15189): DEBUG:  default = FALSE ; flags = {writable}
** (flegita:15189): DEBUG: 
** (flegita:15189): DEBUG: Scan source (source):
** (flegita:15189): DEBUG:  gchararray none (GSParamEnumSpec), {"Flatbed"}
** (flegita:15189): DEBUG:  default = "Flatbed" ; flags = {writable}
** (flegita:15189): DEBUG: 

(flegita:15189): GLib-CRITICAL **: g_utf8_strlen: assertion `p != NULL || max == 0' failed
Errore di segmentazione (core dumped)


Please let me know if I can be of any further help.