Seems that X session management are broken in lxsession.

Steps to reproduce:
1. Start lxde session by command lxsession -s LXDE
2. Open xterm window
3. echo $SESSION_MANAGER
4. Do not close terminal window and log-out from LXDE
5. Re-open session

Expected results:
1. OK
2. OK
3. X session manager connection information shown in format like "local/gaa:@/tmp/.ICE-unix/7136"
4. OK
5. xterm are restarted

Actual results:
1. OK
2. OK
3. Empty string displayed
4. OK
5. xterm not restarted

With xsm session manager all tests are passed.

--- Please enter the report below this line. ---

lxsession package have the same problem.

Debian Release: squeeze/sid
  990 testing         apt-proxy
  500 unstable        apt-proxy
  500 stable          apt-proxy
--- Package information. ---
Depends              (Version) | Installed
==============================-+-============
libatk1.0-0        (>= 1.20.0) | 1.26.0-1
libc6               (>= 2.2.5) | 2.9-12
libcairo2           (>= 1.2.4) | 1.8.6-2+b1
libdbus-1-3         (>= 1.0.2) | 1.2.12-1
libfontconfig1      (>= 2.4.0) | 2.6.0-3
libfreetype6        (>= 2.2.1) | 2.3.9-4.1
libglib2.0-0       (>= 2.16.0) | 2.20.1-2
libgtk2.0-0        (>= 2.10.0) | 2.16.1-2
libpango1.0-0      (>= 1.14.0) | 1.24.0-3+b1
libxau6                        | 1:1.0.4-2


Recommends            (Version) | Installed
===============================-+-===========
openbox                         |
 OR x-window-manager            |
hal                             | 0.5.12~git20090406.46dc48-2
openssh-client                  | 1:5.1p1-5+b1
 OR rsh-client                  |
 OR ssh-client                  |


Suggests         (Version) | Installed
==========================-+-===========
lxde-common                |
lxpanel                    |
pcmanfm                    |
gpicview                   |