window-stack-bridge crashed with SIGSEGV in QVariant::QVariant()

happen on 32-bit Saucy Salamander

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: hud 13.10.1+13.10.20131010-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3
Uname: Linux 3.11.0-11-generic i686
ApportVersion: 2.12.5-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Fri Oct 11 12:19:16 2013
ExecutablePath: /usr/lib/i386-linux-gnu/hud/window-stack-bridge
InstallationDate: Installed on 2013-10-07 (3 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta i386 (20131005)
MarkForUpload: True
ProcCmdline: /usr/lib/i386-linux-gnu/hud/window-stack-bridge
SegvAnalysis:
 Segfault happened at: 0xb757a70a <_ZN8QVariantC2ERKS_+26>: mov (%edi),%eax
 PC (0xb757a70a) ok
 source "(%edi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: hud
StacktraceTop:
 QVariant::QVariant(QVariant const&) () from /usr/lib/i386-linux-gnu/libQt5Core.so.5
 QDBusPendingReplyData::argumentAt(int) const () from /usr/lib/i386-linux-gnu/libQt5DBus.so.5
 BamfWindow::BamfWindow(QString const&, QDBusConnection const&) ()
 BamfWindowStack::addWindow(QString const&) ()
 BamfWindowStack::ViewOpened(QString const&, QString const&) ()
Title: window-stack-bridge crashed with SIGSEGV in QVariant::QVariant()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
upstart.hud.log: (process:1303): hudapplicationlist-WARNING **: Could not get window stack: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.Unity.WindowStack was not provided by any .service files
upstart.window-stack-bridge.log: Window: 44040198 "Desktop" has no parents