/home/.compiz-1/session filling up with old session-id files

[SuperEngineer]

OS = Ubuntu 12.04

On checking for general waste on /home I found /home/.compiz-1/session had more than 1,580 files in it. All were old session-id files [plus current one]. These files are never getting cleared down and waste start time, disk space & inodes.

The old files should be auto-removed when new session-id successfully created instead of current behaviour.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: compiz 1:0.9.7.12-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,compiztoolbox,resize,gnomecompat,move,mousepoll,dbus,place,grid,vpswitch,snap,regex,imgpng,mag,session,animation,wall,expo,ezoom,unitymtgrabhandles,fade,workarounds,scale,unityshell]
Date: Sun Feb 10 15:26:28 2013
DistroCodename: precise
DistroVariant: ubuntu
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Dave Gilbert (ubuntu-treblig)]

Low: They're tiny files so it's unlikely they'll cause disk space problems; but it should be fixed.