SettingsOperation locks up for elevated installation

#0  0x00007f0dbeae1789 in syscall () at /lib64/libc.so.6
#1  0x00000000012c6f38 in QMutex::lock() ()
#2  0x0000000001414202 in QConfFileSettingsPrivate::sync() ()
#3  0x00000000014144f1 in QSettings::event(QEvent*) ()
#4  0x0000000000693d9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
#5  0x0000000000698b70 in QApplication::notify(QObject*, QEvent*) ()
#6  0x00000000004305b9 in SDKApp<QApplication>::notify(QObject*, QEvent*) ()
#7  0x000000000147ebd0 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) ()
#8  0x00000000014d25e3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) ()
#9  0x00007f0dbfd84a04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#10 0x00007f0dbfd84c48 in  () at /usr/lib64/libglib-2.0.so.0
#11 0x00007f0dbfd84cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#12 0x00000000014d26ec in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
#13 0x0000000000514c23 in QInstaller::RemoteObject::authorize() ()
#14 0x0000000000514fa3 in QInstaller::RemoteObject::connectToServer(QList<QVariant> const&) ()
#15 0x00000000005207bd in QInstaller::RemoteFileEngine::setFileName(QString const&) ()
#16 0x00000000005175b5 in QInstaller::RemoteFileEngineHandler::create(QString const&) const ()
#17 0x00000000013a847a in qt_custom_file_engine_handler_create(QString const&) ()
#18 0x00000000014229c5 in _q_resolveEntryAndCreateLegacyEngine_recursive(QFileSystemEntry&, QFileSystemMetaData&, QAbstractFileEngine*&, bool) ()
#19 0x0000000001423079 in QFileSystemEngine::resolveEntryAndCreateLegacyEngine(QFileSystemEntry&, QFileSystemMetaData&) ()
#20 0x00000000013c3a7f in QFileInfo::QFileInfo(QString const&) ()
#21 0x00000000014134bf in QConfFile::isWritable() const ()
#22 0x000000000141381a in QConfFileSettingsPrivate::syncConfFile(int) ()
#23 0x000000000141420c in QConfFileSettingsPrivate::sync() ()
#24 0x0000000001409bf6 in QSettings::~QSettings() ()
#25 0x00000000005076da in QInstaller::SettingsOperation::performOperation() ()
#26 0x000000000046ca39 in QInstaller::runOperation(KDUpdater::UpdateOperation*, QInstaller::PackageManagerCorePrivate::OperationType) ()
#27 0x000000000047ea8e in QtConcurrent::StoredFunctorCall2<bool, bool (*)(KDUpdater::UpdateOperation*, QInstaller::PackageManagerCorePrivate::OperationType), KDUpdater::UpdateOperation*, QInstaller::PackageManagerCorePrivate::OperationType>::runFunctor() ()
#28 0x000000000046afaf in QtConcurrent::RunFunctionTask<bool>::run() ()
#29 0x00000000012cc27a in QThreadPoolThread::run() ()
#30 0x00000000012cf0ff in QThreadPrivate::start(void*) ()
#31 0x00007f0dbf5d00a4 in start_thread () at /lib64/libpthread.so.0