QtCreator crashes in QGtkStyle::drawComplexControl with oxygen-gtk theme

include "/usr/share/themes/oxygen-gtk/gtk-2.0/gtkrc"

gtk-theme-name="oxygen-gtk"

Thread 1 (Thread 0x7ffff7fc3780 (LWP 11801)):
#0  QGtkStyle::drawComplexControl (this=0x0, control=<optimized out>, 
    option=0x7fffffffaa60, painter=0x7fffffffaa40, widget=0x1c5d0f0)
    at styles/qgtkstyle.cpp:1919
#1  0x00007fffde7fee56 in ManhattanStyle::drawComplexControl (this=0x8e0100, 
    control=QStyle::CC_ComboBox, option=0x7fffffffaa60, painter=0x7fffffffaa40, 
    widget=0x1c5d0f0) at ../../../../src/plugins/coreplugin/manhattanstyle.cpp:983
#2  0x00007ffff75efc6e in drawComplexControl (opt=..., cc=QStyle::CC_ComboBox, 
    this=0x7fffffffaa40)
    at ../../include/QtWidgets/../../src/widgets/styles/qstylepainter.h:93
#3  QComboBox::paintEvent (this=0x1c5d0f0) at widgets/qcombobox.cpp:2751
#4  0x00007ffff751d0b8 in QWidget::event (this=0x1c5d0f0, event=0x7fffffffb2b0)
    at kernel/qwidget.cpp:7986
#5  0x00007ffff75f2908 in QComboBox::event (this=0x1c5d0f0, event=0x7fffffffb2b0)
    at widgets/qcombobox.cpp:2816
#6  0x00007ffff74e693c in QApplicationPrivate::notify_helper (this=this@entry=0x61e1e0, 
    receiver=receiver@entry=0x1c5d0f0, e=e@entry=0x7fffffffb2b0)
    at kernel/qapplication.cpp:3394
#7  0x00007ffff74e8832 in QApplication::notify (this=0x7fffffffdbe0, receiver=0x1c5d0f0, 
    e=0x7fffffffb2b0) at kernel/qapplication.cpp:3359
#8  0x00007ffff668b2fe in QCoreApplication::notifyInternal (this=0x7fffffffdbe0, 
    receiver=0x1c5d0f0, event=0x7fffffffb2b0) at kernel/qcoreapplication.cpp:767
#9  0x00007ffff7521775 in sendSpontaneousEvent (event=0x7fffffffb2b0, receiver=0x1c5d0f0)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:206
#10 QWidgetPrivate::drawWidget (this=this@entry=0x1c5d130, pdev=pdev@entry=0x1ca7270, 
    rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, 
    backingStore=backingStore@entry=0x1c73100) at kernel/qwidget.cpp:5112
#11 0x00007ffff75221ed in QWidgetPrivate::paintSiblingsRecursive (
    this=this@entry=0x1afcf70, pdev=pdev@entry=0x1ca7270, siblings=..., 
    index=<optimized out>, index@entry=5, rgn=..., offset=..., flags=flags@entry=4, 
    sharedPainter=sharedPainter@entry=0x0, backingStore=backingStore@entry=0x1c73100)
    at kernel/qwidget.cpp:5306
#12 0x00007ffff7522043 in QWidgetPrivate::paintSiblingsRecursive (this=0x1afcf70, 
---Type <return> to continue, or q <return> to quit---
    pdev=0x1ca7270, siblings=..., index=5, rgn=..., offset=..., flags=4, 
    sharedPainter=0x0, backingStore=0x1c73100) at kernel/qwidget.cpp:5293
#13 0x00007ffff75212c8 in QWidgetPrivate::drawWidget (this=0x1afcf70, pdev=0x1ca7270, 
    rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, 
    backingStore=0x1c73100) at kernel/qwidget.cpp:5163
#14 0x00007ffff74f2b8f in QWidgetBackingStore::sync (this=this@entry=0x1c73100)
    at kernel/qwidgetbackingstore.cpp:1090
#15 0x00007ffff74f3329 in QWidgetBackingStore::sync (this=0x1c73100, 
    exposedWidget=0x7fffffffc4d0, exposedRegion=...)
    at kernel/qwidgetbackingstore.cpp:922
#16 0x00007ffff753e513 in QWidgetWindow::event (this=0x1c54410, event=0x7fffffffc040)
    at kernel/qwidgetwindow.cpp:183
#17 0x00007ffff74e693c in QApplicationPrivate::notify_helper (this=this@entry=0x61e1e0, 
    receiver=receiver@entry=0x1c54410, e=e@entry=0x7fffffffc040)
    at kernel/qapplication.cpp:3394
#18 0x00007ffff74e8832 in QApplication::notify (this=0x7fffffffdbe0, receiver=0x1c54410, 
    e=0x7fffffffc040) at kernel/qapplication.cpp:3359
#19 0x00007ffff668b2fe in QCoreApplication::notifyInternal (this=0x7fffffffdbe0, 
    receiver=0x1c54410, event=0x7fffffffc040) at kernel/qcoreapplication.cpp:767
#20 0x00007ffff6b5e7f5 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007ffff6b62c3d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007ffff6b523d8 in QWindowSystemInterface::sendWindowSystemEventsImplementation(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#23 0x00007fffeee30a90 in ?? ()
   from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#24 0x00007ffff5488f05 in g_main_dispatch (context=0x629d10)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3054
#25 g_main_context_dispatch (context=context@entry=0x629d10)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3630
#26 0x00007ffff5489248 in g_main_context_iterate (context=context@entry=0x629d10, 
    block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3701
#27 0x00007ffff5489304 in g_main_context_iteration (context=0x629d10, may_block=1)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#28 0x00007ffff66d367c in QEventDispatcherGlib::processEvents (this=0x629c40, flags=...)
    at kernel/qeventdispatcher_glib.cpp:423
---Type <return> to continue, or q <return> to quit---
#29 0x00007ffff668a24b in QEventLoop::exec (this=0x7fffffffc2f0, flags=...)
    at kernel/qeventloop.cpp:212
#30 0x00007ffff76c6e3b in QDialog::exec (this=0x7fffffffc4d0) at dialogs/qdialog.cpp:529
#31 0x00007fffde7d7573 in Core::Internal::NewDialog::showDialog (this=0x7fffffffc4d0)
    at ../../../../src/plugins/coreplugin/dialogs/newdialog.cpp:333
#32 0x00007fffde790a0c in Core::Internal::MainWindow::showNewItemDialog (
    this=this@entry=0x8b4230, title=..., wizards=..., defaultLocation=..., 
    extraVariables=...) at ../../../../src/plugins/coreplugin/mainwindow.cpp:933
#33 0x00007fffde790d44 in Core::Internal::MainWindow::newFile (this=0x8b4230)
#33 0x00007fffde790d44 in Core::Internal::MainWindow::newFile (this=0x8b4230)
    at ../../../../src/plugins/coreplugin/mainwindow.cpp:807
#34 0x00007fffde85eced in Core::Internal::MainWindow::qt_static_metacall (
    _o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7fffffffc850)
    at .moc/release-shared/moc_mainwindow.cpp:175
#35 0x00007ffff66b01fb in QMetaObject::activate (sender=0x920930, 
    signalOffset=<optimized out>, local_signal_index=<optimized out>, 
    argv=0x7fffffffc850) at kernel/qobject.cpp:3441
#36 0x00007ffff74df422 in QAction::triggered (this=<optimized out>, _t1=false)
    at .moc/release-shared/moc_qaction.cpp:356
#37 0x00007ffff66b01fb in QMetaObject::activate (sender=0x9351c0, 
    signalOffset=<optimized out>, local_signal_index=<optimized out>, 
    argv=0x7fffffffc9f0) at kernel/qobject.cpp:3441
#38 0x00007ffff74df422 in QAction::triggered (this=this@entry=0x9351c0, _t1=false)
    at .moc/release-shared/moc_qaction.cpp:356
#39 0x00007ffff74e12d7 in QAction::activate (this=0x9351c0, event=<optimized out>)
    at kernel/qaction.cpp:1175
#40 0x00007ffff66b147e in QObject::event (this=0x9351c0, e=<optimized out>)
    at kernel/qobject.cpp:1070
#41 0x00007ffff74e13c0 in QAction::event (this=<optimized out>, e=<optimized out>)
    at kernel/qaction.cpp:1107
#42 0x00007ffff74e693c in QApplicationPrivate::notify_helper (this=this@entry=0x61e1e0, 
    receiver=receiver@entry=0x9351c0, e=e@entry=0x1ae5c00)
    at kernel/qapplication.cpp:3394
#43 0x00007ffff74e8832 in QApplication::notify (this=0x7fffffffdbe0, receiver=0x9351c0, 
    e=0x1ae5c00) at kernel/qapplication.cpp:3359
#44 0x00007ffff668b2fe in QCoreApplication::notifyInternal (this=0x7fffffffdbe0, 
    receiver=receiver@entry=0x9351c0, event=event@entry=0x1ae5c00)
    at kernel/qcoreapplication.cpp:767
#45 0x00007ffff668cf86 in sendEvent (event=0x1ae5c00, receiver=0x9351c0)
---Type <return> to continue, or q <return> to quit---
    at kernel/qcoreapplication.h:203
#46 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x61e350)
    at kernel/qcoreapplication.cpp:1368
#47 0x00007ffff66d34f3 in postEventSourceDispatch (s=s@entry=0x629e80)
    at kernel/qeventdispatcher_glib.cpp:278
#48 0x00007ffff5488f05 in g_main_dispatch (context=0x629d10)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3054
#49 g_main_context_dispatch (context=context@entry=0x629d10)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3630
#50 0x00007ffff5489248 in g_main_context_iterate (context=context@entry=0x629d10, 
    block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3701
#51 0x00007ffff5489304 in g_main_context_iteration (context=0x629d10, may_block=1)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#52 0x00007ffff66d367c in QEventDispatcherGlib::processEvents (this=0x629c40, flags=...)
    at kernel/qeventdispatcher_glib.cpp:423
#53 0x00007ffff668a24b in QEventLoop::exec (this=0x7fffffffd340, flags=...)
    at kernel/qeventloop.cpp:212
#54 0x00007ffff668fc7e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1020
#55 0x0000000000408a53 in main (argc=1, argv=<optimized out>)
    at ../../../src/app/main.cpp:516