Description of problem:
 I was searching app in "GNOME search bar" and It's crashed. simply It has a problem in application center connection between search bar and software center. 

Thank you

Version-Release number of selected component:
gnome-software-3.12.0-1.fc21

Additional info:
reporter:       libreport-2.2.0
backtrace_rating: 4
cmdline:        /usr/bin/gnome-software --gapplication-service
crash_function: g_icon_serialize
executable:     /usr/bin/gnome-software
kernel:         3.14.0-0.rc8.git1.1.fc21.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 g_icon_serialize at gicon.c:658
 #1 handle_get_result_metas at gs-shell-search-provider.c:228
 #2 ffi_call_unix64 at ../src/x86/unix64.S:76
 #3 ffi_call at ../src/x86/ffi64.c:522
 #4 g_cclosure_marshal_generic at gclosure.c:1445
 #7 g_signal_emitv at gsignal.c:3045
 #8 _gs_shell_search_provider2_skeleton_handle_method_call at gs-shell-search-provider-generated.c:1669
 #9 g_dbus_interface_method_dispatch_helper at gdbusinterfaceskeleton.c:609
 #10 skeleton_intercept_handle_method_call at gdbusinterfaceskeleton.c:650
 #11 call_in_idle_cb at gdbusconnection.c:4875