Pressing Super-W to switch windows also presents Dash

Bug Description

Binary package hint: unity

Action: Press Super-W to present all open windows, select an inactive window with mouse to switch.
Expected behaviour: the windows get switched.
Actual behaviour: The windows switch and after the switch the Dash is opened, likely because the Super key is detected twice.

Additional info: This only happens when i press the two keys shortly after each other. When i let a second pass after pressing Super it is only triggered once.
This feels really awkward and breaks my concentration quite frequently.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,imgjpeg,decor,snap,place,imgpng,text,gnomecompat,vpswitch,staticswitcher,regex,resize,move,session,imgsvg,mousepoll,grid,wall,animation,fade,workarounds,expo,scale,scaleaddon,unityshell]
Date: Thu Apr 7 14:15:33 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110320)
ProcEnviron:
LANGUAGE=de_AT:de:en
LANG=de_AT.UTF-8
SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

This bug was fixed in the package unity - 3.8.4-0ubuntu1

---------------
unity (3.8.4-0ubuntu1) natty; urgency=low

* New upstream release.
- [fglrx] compiz crashed with SIGSEGV in nux::IOpenGLSurface::UnlockRect()
(LP: #685682)
- SIGSEGV in g_atomic_int_get (LP: #688803)
- unity-panel-service crashed with SIGSEGV in bamf_factory_view_for_path()
(LP: #717684)
- New window tracking system breaks in the case where windows try to
restack relative to destroyed windows that were never mapped
(LP: #723014)
- Numpad 'Enter' doesn't work on highlighted items in dash, places-files and
places-apps (LP: #741615)
- compiz crashed with SIGSEGV in free() (LP: #738864)
- compiz crashed with SIGSEGV in g_closure_invoke() (LP: #741674)
- compiz crashed with SIGSEGV in CompWindow::id() (LP: #742028)
- Windows that reparent away from the root before they are mapped can
cause other windows to become invisible (and compiz to crash)
(LP: #743011)
- compiz crashed with SIGABRT in raise() (LP: #743414)
- compiz crashed with SIGSEGV in g_object_get_qdata() (LP: #742905)
- compiz crashed with SIGSEGV in g_closure_invoke() (LP: #748033)
- compiz crashed with SIGSEGV in CompScreen::dpy() (LP: #751372)
- compiz crashed with SIGABRT in __kernel_vsyscall() (LP: #744867)
- unity-window-decorator crashed with SIGSEGV in gdk_window_get_events()
(LP: #725284)
- Missing icons in app launcher (LP: #728393)
- Multiple quick clicks on launcher icon with multiple windows completely
crashes Unity (LP: #731790)
- Add a test case for invisible windows regressions (LP: #736876)
- Re-sync with xquerytree to avoid stacking order issues (LP: #740465)
- Wrong window moves (LP: #741656)
- compiz crashed with SIGSEGV in g_cclosure_marshal_VOID__VOID()
(LP: #742280)
- panel superposition (LP: #742859)
- unity-window-decorator doesn't start on secondary X session
(LP: #730495)
- Unity Launcher stops autohiding and is not responsive (LP: #744325)
- dash categories dropdown menu leaves "ghost" on desktop (LP: #746800)
- new dialogs open close enough of the launcher to make hide (LP: #747302)
- dnd from the application place to the launcher works only once
(LP: #747316)
- compiz crashed with SIGSEGV in CompWindow::id() while opening tcl/tk
interface of R (LP: #747439)
- minimize animates window fading to the top left corner (ubuntu symbol)
(LP: #747765)
- Spread - Clicking on a app icon to spread the windows must always show
all the windows, regardless of whether or not some of the windows are
minimised (LP: #750349)
- Launcher - Show visual de-coupling of Launcher app icons (LP: #751196)
- unity-window-decorator crashed with SIGSEGV in event_filter_func()
(LP: #748317)
- Pressing Super-W to switch windows also presents Dash (LP: #753453)
- Don't create windows over the launcher (LP: #688816)
- Unity Grid is broken for multi-monitor setups (LP: #709221)
- F10 key does not move focus to indicators when on the desktop.
(LP: #727548)
- dynamic ...

Sorry, to raise this again, but the bug is not completely fixed. If i use the shortcut fast, and especially if i use it again to close the preview, i still end up with the dash open lots of the time.

Unity version installed is 4.12.0-0ubuntu2 right now.

I can confirm that this behaviour still occurs with Ubuntu 11.10 Unity interface. It happens to me more than 50% of times I use super+w.