My VPN connection was half-broken (#787483) so I ran a couple of nmcli
commands to reconnect it. Unfortunately the second one crashed
(SIGSEGV) but fortunately the VPN still came back up as normal.
I have attached a backtrace of the crash from gdb.
nmcli con down id VPN00 ; nmcli con up id VPN00
Connection 'VPN00' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)
(process:7549): GLib-GObject-CRITICAL **: g_type_instance_get_private: assertion 'instance != NULL && instance->g_class != NULL' failed
Segmentation fault (core dumped)