aptd crashed with SIGSEGV in debListParser::LoadReleaseInfo() while update check on login

$ lsb_release -rd
Description: Ubuntu oneiric (development branch)
Release: 11.10

$ apt-cache policy aptdaemon
aptdaemon:
  Installed: 0.43+bzr697
  Candidate: 0.43+bzr697
  Version table:
 *** 0.43+bzr697 0
        500 http://ru.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
        100 /var/lib/dpkg/status

It's fresh installed and updated system. Pre-released updates switched on.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: aptdaemon 0.43+bzr697
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Fri Sep 23 21:06:52 2011
DesktopFile: /usr/share/aptdaemon/aptdaemon.desktop
ExecutablePath: /usr/sbin/aptd
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/sbin/aptd
ProcEnviron:

SegvAnalysis:
 Segfault happened at: 0x7f3d0f8c7686 <_ZN13debListParser15LoadReleaseInfoERN8pkgCache15PkgFileIteratorER6FileFdSs+630>: mov %eax,(%r15)
 PC (0x7f3d0f8c7686) ok
 source "%eax" ok
 destination "(%r15)" (0x7f3d09abaf78) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: aptdaemon
StacktraceTop:
 debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/libapt-pkg.so.4.11
 debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/libapt-pkg.so.4.11
 ?? () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.11
Title: aptd crashed with SIGSEGV in debListParser::LoadReleaseInfo()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: