minimized window leaves the titile bar words on panel

[Bilal Shahid]

when we minimize a window than the opened window's top bar with titled words leaves the words on the destop top pannel and it doesnt maximized and in the launcher indicator shows the arrow which shows that the window is maximized
see the vedio

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.18.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,snap,place,regex,vpswitch,imgpng,mousepoll,grid,unitymtgrabhandles,wall,move,session,compiztoolbox,resize,gnomecompat,animation,expo,fade,ezoom,workarounds,scale,unityshell]
Date: Wed Sep 28 18:16:47 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110915.1)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)