unity-webapps-context-daemon crashed with SIGSEGV in magazine_chain_pop_head()

while open the dash

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: unity-webapps-service 2.3.8-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-16.25-generic 3.5.4
Uname: Linux 3.5.0-16-generic x86_64
ApportVersion: 2.5.3-0ubuntu1
Architecture: amd64
Date: Sun Sep 30 22:08:26 2012
ExecutablePath: /usr/lib/libunity-webapps/unity-webapps-context-daemon
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120919)
ProcCmdline: /usr/lib/libunity-webapps/unity-webapps-context-daemon OMG!\ Ubuntu! www.omgubuntu.co.uk http://cloudfront.omgubuntu.co.uk/wp-content/themes/randyjensen-handcrafted-wp-theme-2d2cd06/images/logo.png [Invalid\ UTF-8]
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f5233dbc852 <g_slice_alloc+210>: mov 0x8(%rdx),%rbx
 PC (0x7f5233dbc852) ok
 source "0x8(%rdx)" (0x7f5200000008) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: libunity-webapps
StacktraceTop:
 g_slice_alloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_dbus_gvalue_to_gvariant () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 ?? ()
Title: unity-webapps-context-daemon crashed with SIGSEGV in g_slice_alloc()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo