lxpanel reserves space on wrong monitor in mutlimonitor setup with maximized windows.

To reproduce on lubuntu wily in a multimonitor setup with the following xrandr conmmand line for the config

xrandr --output VIRTUAL1 --off --output DP2 --off --output DP1 --off --output HDMI1 --mode 1920x1080 --pos 0x0 --rotate normal --output LVDS1 --mode 1366x768 --pos 0x1080 --rotate normal --output VGA1 --off

and lxpanel set to reseve space for the window manager with maximized windows it does not. In the attached screenshot I used a long comand dmesg and then scrolled
With the smaller laptop screen below. The screenshot shows an entire rectangle but the latpop screen is 1366x768. on the external hdmi monitor open a terminal and maxmize it Then run dmesg sudo apt-get update or another command that prints a lot of text. then scroll down in the terminal to the bottom. Start typing a command and notice that what you are typing is obscured.
lxpanel:
  Installed: 0.7.2-1ubuntu2
  Candidate: 0.7.2-1ubuntu2
  Version table:
 *** 0.7.2-1ubuntu2 0
        500 http://us.archive.ubuntu.com/ubuntu/ wily/universe amd64 Packages
        100 /var/lib/dpkg/status
Description: Ubuntu Wily Werewolf (development branch)
Release: 15.10
lxrandr:
  Installed: 0.3.0-1
  Candidate: 0.3.0-1
  Version table:
 *** 0.3.0-1 0
        500 http://us.archive.ubuntu.com/ubuntu/ wily/universe amd64 Packages
        100 /var/lib/dpkg/status
I expected the maximized window to have the bottom not hidden by the panel on my hdmi monitor it obscures the bottom line so I cannot see what I am tying in as a command or have trouble seeing what I am typing in the ncurses irc client weechat. I have the problem in both sakura and lxterminal. If I restore the terminal window and drag it to the other monitor and maximize the panel I get a bar of the same width of the panel making this appear as if it is reserving space on the wrong monitor.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: lxpanel 0.7.2-1ubuntu2
ProcVersionSignature: Ubuntu 4.0.0-4.7-generic 4.0.7
Uname: Linux 4.0.0-4-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.18-0ubuntu2
Architecture: amd64
Config_Home_Lubuntu:
 [Command]
 Logout=lxsession-default quit
CurrentDesktop: LXDE
Date: Tue Jul 21 11:25:09 2015
InstallationDate: Installed on 2015-06-02 (48 days ago)
InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150602)
SourcePackage: lxpanel
UpgradeStatus: No upgrade log present (probably fresh install)