Version-Release number of selected component:
gnome-shell-3.8.1-1.fc20

Additional info:
backtrace_rating: 4
cmdline:        /usr/bin/gnome-shell
crash_function: atk_object_notify_state_change
executable:     /usr/bin/gnome-shell
kernel:         3.9.0-0.rc7.git1.2.fc20.i686.PAE
runlevel:       N 5
uid:            1000
ureports_counter: 1

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 atk_object_notify_state_change at atkobject.c:1177
 #1 cally_stage_notify_key_focus_cb at /lib/libclutter-1.0.so.0
 #2 g_cclosure_marshal_VOID__PARAM at gmarshal.c:1042
 #8 g_object_notify_by_spec_internal at gobject.c:1136
 #9 g_object_notify at gobject.c:1178
 #10 clutter_stage_real_activate at /lib/libclutter-1.0.so.0
 #11 g_type_value_table_peek at gtype.c:4197
 #18 clutter_stage_event at /lib/libclutter-1.0.so.0
 #19 _clutter_process_event at /lib/libclutter-1.0.so.0
 #20 _clutter_stage_process_queued_events at /lib/libclutter-1.0.so.0

Potential duplicate: bug 827158