compiz crashed with SIGSEGV in assign_to_own()

Crashed while copying files and trying to open from the dash the copy dialog.

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: unity 6.12.0daily13.01.25.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-2.6-generic 3.8.0-rc4
Uname: Linux 3.8.0-2-generic x86_64
ApportVersion: 2.8-0ubuntu2
Architecture: amd64
Date: Wed Jan 30 12:29:06 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2013-01-30 (0 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130129)
MarkForUpload: True
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f7b3f843ded <_ZN10CompAction8initiateEv+13>: mov 0x8(%rdi),%rdx
 PC (0x7f7b3f843ded) ok
 source "0x8(%rdi)" (0x00000009) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 CompAction::initiate() () from /usr/lib/libcompiz_core.so.ABI-20121210
 unity::MultiActionList::Initiate(std::string const&, std::vector<CompOption, std::allocator<CompOption> > const&, int) const () from /usr/lib/compiz/libunityshell.so
 unity::MultiActionList::InitiateAll(std::vector<CompOption, std::allocator<CompOption> > const&, int) const () from /usr/lib/compiz/libunityshell.so
 unity::PluginAdapter::InitiateScale(std::string const&, int) () from /usr/lib/compiz/libunityshell.so
 unity::PluginAdapter::ScaleWindowGroup(std::vector<unsigned long, std::allocator<unsigned long> > const&, int, bool) () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in CompAction::initiate()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo