network-manager freezes when editing connection

[Jérôme Poulin]

After switching network and editing a connection, the network editing window stays frozen.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager-gnome 0.9.8.8-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Mon May 5 14:08:42 2014
ExecutablePath: /usr/bin/nm-connection-editor
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 # Include files from /etc/network/interfaces.d:
 source-directory /etc/network/interfaces.d
IpRoute:
 default via 10.10.4.1 dev eth0 proto static
 10.10.4.0/24 dev eth0 proto kernel scope link src 10.10.4.98 metric 1
 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=false
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 LANGUAGE=en_CA
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager-applet
UpgradeStatus: Upgraded to trusty on 2014-03-25 (41 days ago)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 C8:19:F7:3F:FB:70 bluetooth disconnected /org/freedesktop/NetworkManager/Devices/2
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/1
 wlan0 802-11-wireless unavailable /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.8 connected enabled enabled disabled enabled disabled