Description of problem:
I wanted to reformat a partition. I clicked on it.

Version-Release number of selected component:
gnome-disk-utility-3.18.2-1.fc23

Additional info:
reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        /usr/bin/gnome-disks --gapplication-service
crash_function: get_popup_parent
executable:     /usr/bin/gnome-disks
global_pid:     12731
kernel:         4.2.6-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 get_popup_parent at gdkwindow-wayland.c:1279
 #1 gdk_wayland_window_map at gdkwindow-wayland.c:1367
 #2 gdk_wayland_window_show at gdkwindow-wayland.c:1417
 #3 gdk_window_show_internal at gdkwindow.c:5013
 #4 gtk_window_map at gtkwindow.c:6096
 #5 _g_closure_invoke_va at gclosure.c:864
 #8 gtk_widget_map at gtkwidget.c:4920
 #9 gtk_window_show at gtkwindow.c:5952
 #14 gtk_widget_show at gtkwidget.c:4726
 #15 gtk_menu_popup_for_device at gtkmenu.c:1750