unity crashes when emptying trash twice

FWIW, I had a lot of trash and it took a while until all files were permanently deleted.

This bug was fixed in the package unity - 3.8.10-0ubuntu1

---------------
unity (3.8.10-0ubuntu1) natty; urgency=low

  * New upstream release.
    - Application windows can sometimes fail to display and will mask regions
      of the screen (LP: #709461)
    - Launcher appears _under_ application windows (LP: #743834)
    - Unity Launcher Temporarily Appears Broken at Login (LP: #756951)
    - compiz crashed with signal 7 in g_file_get_uri() (LP: #728319)
    - Only with few windows (and one maximized) or Dodge active window - When
      re-focusing on maximised window Unity launcher does not hide
      (LP: #734681)
    - UIFe: Unity Dash button does not give adequate feedback (LP: #748676)
    - Focus problem with Thunderbird (LP: #753951)
    - compiz crashed with SIGSEGV in PrivateWindow::updateStartupId()
      (LP: #759363)
    - unity places don't start up on login. (LP: #761225)
    - unity crashes when emptying trash twice (LP: #761643)
    - compiz crashed with SIGSEGV in PlacesResultsController::Clear()
      (LP: #761211)
    - compiz crashed with SIGSEGV in PanelView::~PanelView() (LP: #761634)
    - compiz crashed with SIGSEGV in SimpleLauncherIcon::SetIconName()
      (LP: #763560)
    - compiz crashed with SIGSEGV in PlacesView::ConnectPlaces() (LP: #761942)
    - Intellihide stuck with in x=0 on the bfb (LP: #764643)
    - compiz crashed with SIGSEGV in PlacesView::OnResizeFrame() (LP: #763800)
    - unity crashed with GError in reset_unity_compiz_profile(): Failed to
      contact configuration server; the most common cause is a missing or
      misconfigured D-Bus session bus daemon. See
      http://projects.gnome.org/gconf/ for information. (Details - 1: Failed
      to get connection to session: Command line `dbus-launch
      --autolaunch=f0af37ac055f6f348acd417f00000008 --binary-syntax --close-
      stderr' exited with non-zero exit status 1: No protocol
      specified\nAutolaunch error: X11 initialization failed.\n) (LP: #753528)
    - Chromium fullscreen + Alt-TAB confuses the launcher (LP: #757434)
    - Cannot click on left-most indicator on panel if a non-indicator icon
      appears (LP: #761409)
    - vim.gnome window is invisible (LP: #719001)
    - Trash/ws switcher icon in unity resets to default icon theme on the
      event of a deletion or emptying the trash or after an upgrade
      (LP: #761289)
    - Incorrect keynav hilight/opened Quicklist without any request
      (LP: #764730)
    - indicator font does not update when changing font in Appearance
      Preferences. (LP: #759886)
    - In dash search filter drop box, black text is on a black background when
      item is selected (LP: #761201)
 -- Didier Roche <email address hidden> Tue, 19 Apr 2011 19:30:20 +0200