[Lucid] When setting a static ip, hitting enter after entering the ip address in network manager results in X restarting (the first time only)

Binary package hint: network-manager

This is reproducible on all live desktop environments. I have reproduced this bug on hardware and in VirtualBox.

RELEASE: Lucid Lynx
CD/DVD VARIANT: 32bit and 64bit Desktop Ubuntu and Xubuntu
ISO BUILD: Xubuntu 2010-03-16.1 and Ubuntu 2010-03-16
SYMPTOMS: Adding a manual IP address to network manager after the live environment is started, hitting enter results in X restarting. You must then login to GDM and start over adding the static IP. It will now work normally without the restart.

STEPS TO REPRODUCE:

   1. Boot the desktop CD, choosing "Try before installing" from the menu
   2. After the live desktop in up, right-click the network-manager icon in the panel, left-click "Edit connections... "
   3. Left-clcik on "Add"
   4. Left-click on "IPv4 Settings"
   5. Left-click on "Automatic (DHCP), Left-clickj on "Manual"
   6. Left-click on Add
   7. Type in an IP address, in the Address column
   8. Hit Enter on the keyboard
   9. Observe X restarting
  10. At the GDM login prompt, enter ubuntu for the user-name, hit enter for the password
  11. When the live desktop comes up, repeat steps 2-8

ProblemType: Bug
Architecture: i386
CRDA: Error: [Errno 2] No such file or directory
Date: Tue Mar 16 13:44:35 2010
DistroRelease: Ubuntu 10.04
IfupdownConfig:
 auto lo
 iface lo inet loopback
IpRoute:
 192.168.51.0/24 dev eth0 proto kernel scope link src 192.168.51.2 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
 default via 192.168.51.1 dev eth0 proto static
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Keyfiles: Error: [Errno 2] No such file or directory
LiveMediaBuild: Xubuntu 10.04 "Lucid Lynx" - Beta i386 (20100316.1)
Package: network-manager 0.8-0ubuntu2
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
RfKill:

SourcePackage: network-manager
Uname: Linux 2.6.32-16-generic i686