Description of problem:
Import existing image, click on browse, then browse local, then it crashed.

Version-Release number of selected component:
virt-manager-1.2.1-3.fc23

Additional info:
reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        /usr/bin/python2 -tt /usr/share/virt-manager/virt-manager
crash_function: get_display_name_from_file_list
executable:     /usr/bin/python2.7
global_pid:     12193
kernel:         4.2.8-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #4 get_display_name_from_file_list at gtkfilechooserwidget.c:6280
 #5 gtk_file_chooser_widget_should_respond at gtkfilechooserwidget.c:6824
 #6 response_cb at gtkfilechooserdialog.c:660
 #11 _g_closure_invoke_va at gclosure.c:864
 #14 button_activate_timeout at gtkbutton.c:2038
 #21 gtk_dialog_run at gtkdialog.c:1395
 #22 ffi_call_unix64 at ../src/x86/unix64.S:76
 #23 ffi_call at ../src/x86/ffi64.c:525
 #24 pygi_invoke_c_callable at pygi-invoke.c:645
 #25 pygi_function_cache_invoke at pygi-cache.c:820