ibus-engine-pinyin crashed with SIGSEGV in PY::BopomofoEditor::updateLookupTableLabel()

[ZOUFENG]

 I can't input any chinese character and sometimes the ibus can crack out . Sometimes I would not use the ibus input and I will reboot my computer to switch WIN7 for my work.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: ibus-pinyin 1.5.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
Uname: Linux 3.13.0-19-generic i686
ApportVersion: 2.13.3-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Sat Mar 29 10:54:01 2014
ExecutablePath: /usr/lib/ibus/ibus-engine-pinyin
InstallationDate: Installed on 2014-03-28 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta i386 (20140326)
ProcCmdline: /usr/lib/ibus/ibus-engine-pinyin --ibus
ProcEnviron:
 LANGUAGE=zh_CN:zh
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=zh_CN.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x804d5b8: movsbl (%esi),%edx
 PC (0x0804d5b8) ok
 source "(%esi)" (0x36595032) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: ibus-pinyin
StacktraceTop:
 ?? ()
 ?? ()
 PyZy::PhoneticContext::updateCandidates() () from /usr/lib/i386-linux-gnu/libpyzy-1.0.so.0
 PyZy::PhoneticContext::update() () from /usr/lib/i386-linux-gnu/libpyzy-1.0.so.0
 PyZy::PhoneticContext::reset() () from /usr/lib/i386-linux-gnu/libpyzy-1.0.so.0
Title: ibus-engine-pinyin crashed with SIGSEGV in PyZy::PhoneticContext::updateCandidates()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 PY::BopomofoEditor::updateLookupTableLabel (this=this@entry=0x946a498) at PYBopomofoEditor.cc:214
 PY::BopomofoEditor::updateLookupTable (this=0x946a498) at PYBopomofoEditor.cc:243
 PyZy::PhoneticContext::updateCandidates() () from /tmp/apport_sandbox_yk5ZBP/usr/lib/i386-linux-gnu/libpyzy-1.0.so.0
 PyZy::PhoneticContext::update() () from /tmp/apport_sandbox_yk5ZBP/usr/lib/i386-linux-gnu/libpyzy-1.0.so.0
 PyZy::PhoneticContext::reset() () from /tmp/apport_sandbox_yk5ZBP/usr/lib/i386-linux-gnu/libpyzy-1.0.so.0