Description of problem:
This happens directly after logging into gnome.

Happens since upgrade to 3.9.2-200.fc18.x86_64; 3.8.11-200.fc18.x86_64 works fine

Version-Release number of selected component:
gnome-shell-3.6.3.1-1.fc18

Additional info:
backtrace_rating: 4
cmdline:        /usr/bin/gnome-shell
crash_function: type_to_string
executable:     /usr/bin/gnome-shell
kernel:         3.9.2-200.fc18.x86_64
uid:            1000
ureports_counter: 2

Truncated backtrace:
Thread no. 1 (10 frames)
 #3 type_to_string at rfkill-glib.c:83
 #5 rfkill_glib_open at rfkill-glib.c:232
 #6 bluetooth_killswitch_init at bluetooth-killswitch.c:344
 #7 g_type_create_instance at gtype.c:1890
 #8 g_object_constructor at gobject.c:1854
 #11 bluetooth_killswitch_new at bluetooth-killswitch.c:386
 #12 bluetooth_applet_init at bluetooth-applet.c:960
 #13 g_type_create_instance at gtype.c:1890
 #14 g_object_constructor at gobject.c:1854
 #16 object_instance_init at gi/object.c:948