nautilus crashed with SIGSEGV in g_type_check_instance_is_a()

I was using the new quicklist for opening Nautilus bookmarks in the launcher. When I tried to open "Documents" (but it also happened when I tried to open "Music"), it crashed and asked if I wanted to report it.

The quicklist does work when I use it while Nautilus is already open (when I just normally leftclick the icon). It will just switch to the appropriete bookmark than.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: nautilus 1:3.2.1-2ubuntu9
ProcVersionSignature: Ubuntu 3.2.0-9.16-generic 3.2.1
Uname: Linux 3.2.0-9-generic i686
ApportVersion: 1.90-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Tue Jan 17 17:11:00 2012
ExecutablePath: /usr/bin/nautilus
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111129.1)
ProcCmdline: nautilus
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x6df450 <g_type_check_instance_is_a+144>: testb $0x4,0xe(%edi)
 PC (0x006df450) ok
 source "$0x4" ok
 destination "0xe(%edi)" (0x891cec8e) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: nautilus
StacktraceTop:
 g_type_check_instance_is_a () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 g_file_is_native () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
 ?? ()
 ?? ()
 g_cclosure_marshal_VOID(unsigned int0_t) () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: nautilus crashed with SIGSEGV in g_type_check_instance_is_a()
UpgradeStatus: Upgraded to precise on 2012-01-16 (1 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo