ASSERT: "childItems.contains(child)" in qquickitem.cpp

#0  0x00007ffff6161d7f in raise () from /usr/lib/libc.so.6
#1  0x00007ffff614c672 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff6a28ca3 in qt_message_fatal (context=..., message=<synthetic pointer>...) at /data/sources/qt/qt5/qtbase/src/corelib/global/qlogging.cpp:1840
#3  QMessageLogger::fatal (this=this@entry=0x7fffffff6fe0, msg=msg@entry=0x7ffff67cc278 "ASSERT: \"%s\" in file %s, line %d") at /data/sources/qt/qt5/qtbase/src/corelib/global/qlogging.cpp:880
#4  0x00007ffff6a1f9b1 in qt_assert (assertion=assertion@entry=0x7ffff0ac4a44 "childItems.contains(child)", file=file@entry=0x7ffff0ab7a10 "/data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickitem.cpp", line=line@entry=2972)
    at ../../include/QtCore/../../../../../../sources/qt/qt5/qtbase/src/corelib/global/qlogging.h:91
#5  0x00007ffff0cd24f4 in QQuickItemPrivate::removeChild(QQuickItem*) [clone .cold.411] () at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:8285
#6  0x00007ffff0cccc9a in QQuickItem::setParentItem (this=0x55555562b830, parentItem=parentItem@entry=0x0) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:2730
#7  0x00007ffff0921c6b in QQuickPopupPrivate::finalizeExitTransition (this=0x5555555ae940) at /data/sources/qt/qt5/qtquickcontrols2/src/quicktemplates2/qquickpopup.cpp:443
#8  0x00007ffff0be01b8 in QQuickTransitionManager::transition (this=<optimized out>, list=..., transition=0x0, defaultTarget=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/quick/util/qquicktransitionmanager.cpp:265
#9  0x00007ffff0958900 in QQuickPopup::qt_static_metacall (_o=_o@entry=0x555555628810, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=49, _a=_a@entry=0x7fffffff7520) at .moc/moc_qquickpopup_p.cpp:619
#10 0x00007ffff09597bb in QQuickPopup::qt_metacall (this=this@entry=0x555555628810, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=49, _a=_a@entry=0x7fffffff7520) at .moc/moc_qquickpopup_p.cpp:1133
#11 0x00007ffff0951695 in QQuickDialog::qt_metacall (this=0x555555628810, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffffff7520) at .moc/moc_qquickdialog_p.cpp:365
#12 0x00007ffff7ed99b9 in QQmlObjectOrGadget::metacall (this=this@entry=0x7fffffff7830, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=54, argv=argv@entry=0x7fffffff7520)
    at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/qml/ftw/qflagpointer_p.h:327
#13 0x00007ffff7e3175b in CallMethod (object=..., index=54, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x5555555af1b0, callArgs=0x7ffff1c9e498, callType=QMetaObject::InvokeMetaMethod)
    at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:1193
#14 0x00007ffff7e31f13 in CallPrecise (object=..., data=..., engine=engine@entry=0x5555555af1b0, callArgs=callArgs@entry=0x7ffff1c9e498, callType=callType@entry=QMetaObject::InvokeMetaMethod)
    at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlpropertycache_p.h:214
#15 0x00007ffff7e32de0 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=0x7ffff1c9e458, argv=<optimized out>, argc=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:1975
#16 0x00007ffff7e5247b in QV4::FunctionObject::call (argc=0, argv=0x7ffff1c9e420, thisObject=0x7ffff1c9e458, this=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4functionobject_p.h:141
#17 QV4::Runtime::method_callProperty (engine=0x5555555af1b0, base=0x7ffff1c9e458, nameIndex=26, argv=0x7ffff1c9e420, argc=0) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4runtime.cpp:1062
#18 0x00007ffff7e43897 in QV4::Moth::VME::exec (fo=0x5555555af1b0, thisObject=0x7ffff7fbe8c0 <QV4::Moth::VME::exec(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int)::jumpTable>, argv=0x7ffff16b17a0, argc=-189353419) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:800
#19 0x00007ffff7f0a62c in QV4::Moth::VME::exec (context=<optimized out>, argc=<optimized out>, argv=0x7ffff1c9e420, thisObject=<optimized out>, v4Function=0x55555566b6a0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4vme_moth_p.h:72
#20 QV4::Function::call (context=<optimized out>, argc=<optimized out>, argv=0x7ffff1c9e420, thisObject=<optimized out>, this=0x55555566b6a0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4function_p.h:72
#21 QQmlJavaScriptExpression::evaluate (this=this@entry=0x55555566ed20, callData=callData@entry=0x7ffff1c9e3f8, isUndefined=isUndefined@entry=0x0) at /data/sources/qt/qt5/qtdeclarative/src/qml/qml/qqmljavascriptexpression.cpp:217
#22 0x00007ffff7e968f3 in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=a@entry=0x0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4jscall_p.h:94
#23 0x00007ffff7e96f8b in QQmlBoundSignal_callback (e=0x55555564a9c0, a=0x0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#24 0x00007ffff7ee4b69 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at /data/sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:106
#25 0x00007ffff7e752fa in QQmlData::signalEmitted (object=0x555555a8d310, index=52, a=0x0) at /data/sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlengine.cpp:861
#26 0x00007ffff6c3909f in QMetaObject::activate (sender=sender@entry=0x555555a8d310, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=22, argv=argv@entry=0x0) at ../../include/QtCore/../../../../../../sources/qt/qt5/qtbase/src/corelib/kernel/qobject.h:121
#27 0x00007ffff6c39cf7 in QMetaObject::activate (sender=sender@entry=0x555555a8d310, m=m@entry=0x7ffff0e8ab00 <QQuickMouseArea::staticMetaObject>, local_signal_index=local_signal_index@entry=22, argv=argv@entry=0x0) at /data/sources/qt/qt5/qtbase/src/corelib/kernel/qobject.cpp:3633
#28 0x00007ffff0d60da3 in QQuickMouseArea::containsPressChanged (this=this@entry=0x555555a8d310) at .moc/moc_qquickmousearea_p.cpp:700
#29 0x00007ffff0d61eb8 in QQuickMouseArea::ungrabMouse (this=0x555555a8d310) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickmousearea.cpp:926
#30 0x00007ffff0ce269c in QQuickWindowPrivate::sendUngrabEvent (touch=false, grabber=0x555555a8d310, this=0x555555667b60) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:849
#31 QQuickWindowPrivate::sendUngrabEvent (this=0x555555667b60, grabber=0x555555a8d310, touch=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:842
#32 0x00007ffff0ce2885 in QQuickWindowPrivate::removeGrabber (this=this@entry=0x555555667b60, grabber=0x555555a8d310, mouse=mouse@entry=true, touch=touch@entry=true) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:822
#33 0x00007ffff0ccc7d6 in QQuickItemPrivate::derefWindow (this=0x55555566e9b0) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:3053
#34 0x00007ffff0ccc90e in QQuickItemPrivate::derefWindow (this=0x55555562c680) at /data/installation/qt/x86_64-5.11/include/QtCore/qglobal.h:1038
#35 0x00007ffff0ccc90e in QQuickItemPrivate::derefWindow (this=this@entry=0x555555a8d540) at /data/installation/qt/x86_64-5.11/include/QtCore/qglobal.h:1038
#36 0x00007ffff0ccccd8 in QQuickItem::setParentItem (this=0x55555562b830, parentItem=parentItem@entry=0x0) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:2744
#37 0x00007ffff0921c6b in QQuickPopupPrivate::finalizeExitTransition (this=0x5555555ae940) at /data/sources/qt/qt5/qtquickcontrols2/src/quicktemplates2/qquickpopup.cpp:443
#38 0x00007ffff0be01b8 in QQuickTransitionManager::transition (this=<optimized out>, list=..., transition=0x0, defaultTarget=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/quick/util/qquicktransitionmanager.cpp:265
#39 0x00007ffff0958900 in QQuickPopup::qt_static_metacall (_o=_o@entry=0x555555628810, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=49, _a=_a@entry=0x7fffffff9f50) at .moc/moc_qquickpopup_p.cpp:619
#40 0x00007ffff09597bb in QQuickPopup::qt_metacall (this=this@entry=0x555555628810, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=49, _a=_a@entry=0x7fffffff9f50) at .moc/moc_qquickpopup_p.cpp:1133
#41 0x00007ffff0951695 in QQuickDialog::qt_metacall (this=0x555555628810, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffffff9f50) at .moc/moc_qquickdialog_p.cpp:365
#42 0x00007ffff7ed99b9 in QQmlObjectOrGadget::metacall (this=this@entry=0x7fffffffa260, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=54, argv=argv@entry=0x7fffffff9f50)
    at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/qml/ftw/qflagpointer_p.h:327
--Type <RET> for more, q to quit, c to continue without paging--
#43 0x00007ffff7e3175b in CallMethod (object=..., index=54, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x5555555af1b0, callArgs=0x7ffff1c9e3c8, callType=QMetaObject::InvokeMetaMethod)
    at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:1193
#44 0x00007ffff7e31f13 in CallPrecise (object=..., data=..., engine=engine@entry=0x5555555af1b0, callArgs=callArgs@entry=0x7ffff1c9e3c8, callType=callType@entry=QMetaObject::InvokeMetaMethod)
    at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlpropertycache_p.h:214
#45 0x00007ffff7e32de0 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=0x7ffff1c9e388, argv=<optimized out>, argc=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:1975
#46 0x00007ffff7e5247b in QV4::FunctionObject::call (argc=0, argv=0x7ffff1c9e350, thisObject=0x7ffff1c9e388, this=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4functionobject_p.h:141
#47 QV4::Runtime::method_callProperty (engine=0x5555555af1b0, base=0x7ffff1c9e388, nameIndex=26, argv=0x7ffff1c9e350, argc=0) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4runtime.cpp:1062
#48 0x00007ffff7e43897 in QV4::Moth::VME::exec (fo=0x5555555af1b0, thisObject=0x7ffff7fbe8c0 <QV4::Moth::VME::exec(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int)::jumpTable>, argv=0x7ffff16b17a0, argc=-189353419) at /data/sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:800
#49 0x00007ffff7f0a62c in QV4::Moth::VME::exec (context=<optimized out>, argc=<optimized out>, argv=0x7ffff1c9e350, thisObject=<optimized out>, v4Function=0x55555566b6a0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4vme_moth_p.h:72
#50 QV4::Function::call (context=<optimized out>, argc=<optimized out>, argv=0x7ffff1c9e350, thisObject=<optimized out>, this=0x55555566b6a0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4function_p.h:72
#51 QQmlJavaScriptExpression::evaluate (this=this@entry=0x55555566ed20, callData=callData@entry=0x7ffff1c9e328, isUndefined=isUndefined@entry=0x0) at /data/sources/qt/qt5/qtdeclarative/src/qml/qml/qqmljavascriptexpression.cpp:217
#52 0x00007ffff7e968f3 in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=a@entry=0x0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/jsruntime/qv4jscall_p.h:94
#53 0x00007ffff7e96f8b in QQmlBoundSignal_callback (e=0x55555564a9c0, a=0x0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../../../../../sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#54 0x00007ffff7ee4b69 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at /data/sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:106
#55 0x00007ffff7e752fa in QQmlData::signalEmitted (object=0x555555a8d310, index=52, a=0x0) at /data/sources/qt/qt5/qtdeclarative/src/qml/qml/qqmlengine.cpp:861
#56 0x00007ffff6c3909f in QMetaObject::activate (sender=sender@entry=0x555555a8d310, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=22, argv=argv@entry=0x0) at ../../include/QtCore/../../../../../../sources/qt/qt5/qtbase/src/corelib/kernel/qobject.h:121
#57 0x00007ffff6c39cf7 in QMetaObject::activate (sender=sender@entry=0x555555a8d310, m=m@entry=0x7ffff0e8ab00 <QQuickMouseArea::staticMetaObject>, local_signal_index=local_signal_index@entry=22, argv=argv@entry=0x0) at /data/sources/qt/qt5/qtbase/src/corelib/kernel/qobject.cpp:3633
#58 0x00007ffff0d60da3 in QQuickMouseArea::containsPressChanged (this=this@entry=0x555555a8d310) at .moc/moc_qquickmousearea_p.cpp:700
#59 0x00007ffff0d6205d in QQuickMouseArea::setHovered (this=this@entry=0x555555a8d310, h=<optimized out>) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickmousearea.cpp:1160
#60 0x00007ffff0d62f0f in QQuickMouseArea::mouseMoveEvent (this=0x555555a8d310, event=0x7fffffffc8d0) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickmousearea.cpp:713
#61 0x00007ffff0ccb588 in QQuickItem::event (this=0x555555a8d310, ev=0x7fffffffc8d0) at /data/sources/qt/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:8018