seahorse crashed with SIGSEGV in g_simple_async_result_complete()

steps to reproduce:

1 seahorse → remote → sync and publish keys…
2 If keyserver is unavailable (Couldn't communicate with server 'keyserver.ubuntu.com:11371': Cannot connect to destination (keyserver.ubuntu.com))→ crashed and closed.

in terminal:
% LANG=en_RU.UTF-8 seahorse

Gtk-WARNING **: Locale not supported by C library.
 Using the fallback 'C' locale.
** Message: init gpgme version 1.2.0

** WARNING **: destination is not of type: gnome-keyring

** WARNING **: destination is not of type: openssh

** WARNING **: destination is not of type: gnome-keyring

** CRITICAL **: seahorse_source_export_raw_async: assertion `iface->export_async != NULL' failed

** CRITICAL **: seahorse_source_export_raw_async: assertion `iface->export_async != NULL' failed

** WARNING **: caller is trying to end part of task that has already ended

** WARNING **: caller is trying to end part of task that has already ended

** WARNING **: caller is trying to end part of task that has already ended

** WARNING **: caller is trying to end part of task that has already ended

GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `GSimpleAsyncResult'

GLib-GIO-CRITICAL **: g_simple_async_result_get_op_res_gpointer: assertion `G_IS_SIMPLE_ASYNC_RESULT (simple)' failed
Ошибка сегментирования (core dumped)

opened because #855940 marked as incomplete.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: seahorse 3.2.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Wed Mar 14 13:10:06 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/seahorse
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: seahorse
SegvAnalysis:
 Segfault happened at: 0x43bd49: mov (%rbx),%rdi
 PC (0x0043bd49) ok
 source "(%rbx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: seahorse
StacktraceTop:
 ?? ()
 g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: seahorse crashed with SIGSEGV in g_simple_async_result_complete()
UpgradeStatus: Upgraded to precise on 2012-03-13 (0 days ago)
UserGroups: adm admin cdrom dialout dip lpadmin plugdev sambashare sudo