Comment 4 for bug 592786

gdb backtrace:

Starting program: /usr/bin/qtcreator.bin
[Thread debugging using libthread_db enabled]
(3819) KSharedDataCache::Private::mapSharedMemory: Opening cache "/var/tmp/kdecache-shermann/icon-cache.kcache" page size is 4096
(3819) KSharedDataCache::Private::mapSharedMemory: Attached to cache, determining if it must be initialized
(3819) KSharedDataCache::Private::mapSharedMemory: Cache fully initialized -- attached to memory mapping
(3819) KSharedDataCache::Private::mapSharedMemory: 5148672 bytes available out of 10485760
[New Thread 0x7fffeaa6a710 (LWP 3822)]
[Thread 0x7fffeaa6a710 (LWP 3822) exited]
registerWindow Invalid WindowMenu.Registrar!
[New Thread 0x7fffeaa6a710 (LWP 3823)]
[New Thread 0x7fffdd7a8710 (LWP 3826)]
[New Thread 0x7fffdcf18710 (LWP 3827)]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff6598907 in QString::operator=(QString const&) () from /usr/lib/libQtCore.so.4
(gdb) backtrace
#0 0x00007ffff6598907 in QString::operator=(QString const&) () from /usr/lib/libQtCore.so.4
#1 0x00007fffe12a049f in QDeclarativeType::QDeclarativeType(int, QDeclarativePrivate::RegisterType const&) () from /usr/lib/libQtDeclarative.so.4
#2 0x00007fffe12a41cd in QDeclarativePrivate::registerType(QDeclarativePrivate::RegisterType const&) () from /usr/lib/libQtDeclarative.so.4
#3 0x00007fffe161d634 in ?? () from /usr/lib/qtcreator/plugins/Nokia/libQmlProjectManager.so
#4 0x00007fffe161ba44 in ?? () from /usr/lib/qtcreator/plugins/Nokia/libQmlProjectManager.so
#5 0x00007fffe1622815 in ?? () from /usr/lib/qtcreator/plugins/Nokia/libQmlProjectManager.so
#6 0x00007ffff7bc8c84 in ExtensionSystem::Internal::PluginSpecPrivate::initializePlugin() () from /usr/bin/../lib/qtcreator/libExtensionSystem.so.1
#7 0x00007ffff7bc37b3 in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) ()
   from /usr/bin/../lib/qtcreator/libExtensionSystem.so.1
#8 0x00007ffff7bc396f in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugins() () from /usr/bin/../lib/qtcreator/libExtensionSystem.so.1
#9 0x000000000040a4e7 in ?? ()
#10 0x00007ffff57b5d8d in __libc_start_main () from /lib/libc.so.6
#11 0x0000000000405b79 in ?? ()
#12 0x00007fffffffe1b8 in ?? ()
#13 0x000000000000001c in ?? ()
#14 0x0000000000000001 in ?? ()
#15 0x00007fffffffe4ae in ?? ()
#16 0x0000000000000000 in ?? ()