Regression: Crash on text edit

#0  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:74
#1  0x00007f45c6ec52bc in qstrlen (str=0x6e002400200073 <error: Cannot access memory at address 0x6e002400200073>) at /home/jarek/dev/qt-64/qtbase/src/corelib/text/qbytearrayalgorithms.h:106
#2  0x00007f45c6f905d9 in QMetaObject::normalizedType (type=0x6e002400200073 <error: Cannot access memory at address 0x6e002400200073>) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qmetaobject.cpp:1277
#3  0x00007f45c6fb04d7 in (anonymous namespace)::QMetaTypeCustomRegistry::registerCustomType (this=0x7f45c77372e0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::(anonymous namespace)::Q_QGS_customTypeRegistry> >::instance()::holder>, ti=0x7f43d95053c0) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qmetatype.cpp:89
#4  0x00007f45c6fb0ed8 in QMetaType::idHelper (this=0x7f441f7fd788) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qmetatype.cpp:512
#5  0x00007f45c6ec10e6 in QMetaType::id (this=0x7f441f7fd788) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qmetatype.h:425
#6  0x00007f45c6fc1051 in QMetaType::canConvert (fromType=..., toType=...) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qmetatype.cpp:2428
#7  0x00007f45ac2b7216 in QVariant::canConvert (this=0x7f43d8d02e08, targetType=...) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qvariant.h:218
#8  0x00007f45ac2f141d in QVariant::canConvert<QString> (this=0x7f43d8d02e08) at /home/jarek/dev/qt-64/qtbase/src/corelib/kernel/qvariant.h:381
#9  0x00007f45ac2f0c34 in TextEditor::AssistProposalItem::isSnippet (this=0x7f43d8d02dc0) at /home/jarek/dev/creator-11/src/plugins/texteditor/codeassist/assistproposalitem.cpp:84
#10 0x00007f4552c1149c in CppEditor::Internal::InternalCppCompletionAssistProcessor::createContentProposal (this=0x55f5b135ca80) at /home/jarek/dev/creator-11/src/plugins/cppeditor/cppcompletionassist.cpp:856
#11 0x00007f4552c111f6 in CppEditor::Internal::InternalCppCompletionAssistProcessor::performAsync (this=0x55f5b135ca80) at /home/jarek/dev/creator-11/src/plugins/cppeditor/cppcompletionassist.cpp:808
#12 0x00007f45ac2f2509 in operator() (__closure=0x7f441f7fd980) at /home/jarek/dev/creator-11/src/plugins/texteditor/codeassist/asyncprocessor.cpp:26
#13 0x00007f45ac2f35d3 in std::__invoke_impl<TextEditor::IAssistProposal*, TextEditor::AsyncProcessor::perform()::<lambda()>&>(std::__invoke_other, struct {...} &) (__f=...) at /usr/include/c++/11/bits/invoke.h:61
#14 0x00007f45ac2f355a in std::__invoke<TextEditor::AsyncProcessor::perform()::<lambda()>&>(struct {...} &) (__fn=...) at /usr/include/c++/11/bits/invoke.h:96
#15 0x00007f45ac2f34af in std::invoke<TextEditor::AsyncProcessor::perform()::<lambda()>&>(struct {...} &) (__fn=...) at /usr/include/c++/11/functional:97
#16 0x00007f45ac2f3386 in operator() (__closure=0x7f441f7fda7f, function=...) at /home/jarek/dev/qt-64/qtbase/src/concurrent/qtconcurrentstoredfunctioncall.h:116
#17 0x00007f45ac2f35ad in std::__invoke_impl<TextEditor::IAssistProposal*, const QtConcurrent::StoredFunctionCall<TextEditor::AsyncProcessor::perform()::<lambda()> >::runFunctor()::<lambda(std::decay_t<TextEditor::AsyncProcessor::perform()::<lambda()> >)>&, TextEditor::AsyncProcessor::perform()::<lambda()> >(std::__invoke_other, const struct {...} &) (__f=...) at /usr/include/c++/11/bits/invoke.h:61
#18 0x00007f45ac2f3526 in std::__invoke<const QtConcurrent::StoredFunctionCall<TextEditor::AsyncProcessor::perform()::<lambda()> >::runFunctor()::<lambda(std::decay_t<TextEditor::AsyncProcessor::perform()::<lambda()> >)>&, TextEditor::AsyncProcessor::perform()::<lambda()> >(const struct {...} &) (__fn=...) at /usr/include/c++/11/bits/invoke.h:96
#19 0x00007f45ac2f33c7 in std::__apply_impl<const QtConcurrent::StoredFunctionCall<TextEditor::AsyncProcessor::perform()::<lambda()> >::runFunctor()::<lambda(std::decay_t<TextEditor::AsyncProcessor::perform()::<lambda()> >)>&, std::tuple<TextEditor::AsyncProcessor::perform()::<lambda()> >, 0>(const struct {...} &, std::tuple<TextEditor::AsyncProcessor::perform()::<lambda()> > &&, std::index_sequence) (__f=..., __t=...) at /usr/include/c++/11/tuple:1858
#20 0x00007f45ac2f3404 in std::apply<const QtConcurrent::StoredFunctionCall<TextEditor::AsyncProcessor::perform()::<lambda()> >::runFunctor()::<lambda(std::decay_t<TextEditor::AsyncProcessor::perform()::<lambda()> >)>&, std::tuple<TextEditor::AsyncProcessor::perform()::<lambda()> > >(const struct {...} &, std::tuple<TextEditor::AsyncProcessor::perform()::<lambda()> > &&) (__f=..., __t=...) at /usr/include/c++/11/tuple:1869
#21 0x00007f45ac2f344c in QtConcurrent::StoredFunctionCall<TextEditor::AsyncProcessor::perform()::<lambda()> >::runFunctor(void) (this=0x55f5b2ab0dd0) at /home/jarek/dev/qt-64/qtbase/src/concurrent/qtconcurrentstoredfunctioncall.h:122
#22 0x00007f45ac2f427e in QtConcurrent::RunFunctionTaskBase<TextEditor::IAssistProposal*>::run (this=0x55f5b2ab0dd0) at /home/jarek/dev/qt-64/qtbase/src/concurrent/qtconcurrentrunbase.h:83
#23 0x00007f45c721d934 in QThreadPoolThread::run (this=0x55f5aea4b870) at /home/jarek/dev/qt-64/qtbase/src/corelib/thread/qthreadpool.cpp:66
#24 0x00007f45c7215e69 in operator() (__closure=0x7f441f7fdc98) at /home/jarek/dev/qt-64/qtbase/src/corelib/thread/qthread_unix.cpp:321
#25 0x00007f45c72170af in (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> >(struct {...} &&) (t=...) at /home/jarek/dev/qt-64/qtbase/src/corelib/thread/qthread_unix.cpp:257
#26 0x00007f45c7215f35 in QThreadPrivate::start (arg=0x55f5aea4b870) at /home/jarek/dev/qt-64/qtbase/src/corelib/thread/qthread_unix.cpp:280
#27 0x00007f45c6694b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#28 0x00007f45c6726a00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81