~QQuickContainer() Crash when calling QQmlIncubator::abort

QQuickContainerPrivate::itemAt(int) const (@QQuickContainerPrivate::itemAt(int) const:9)
QQuickContainerPrivate::cleanup() (@QQuickContainerPrivate::cleanup():23)
QQuickContainer::~QQuickContainer() (@QQuickContainer::~QQuickContainer():12)
___lldb_unnamed_symbol8599 (@___lldb_unnamed_symbol8599:17)
QQmlObjectCreator::clear() (@QQmlObjectCreator::clear():110)
QQmlIncubatorPrivate::clear() (@QQmlIncubatorPrivate::clear():104)
QQmlIncubator::clear() (@QQmlIncubator::clear():30)
QQmlIncubatorPrivate::clear() (@QQmlIncubatorPrivate::clear():122)
QQmlIncubator::clear() (@QQmlIncubator::clear():30)
X::abortIncubation(X*)
...

import QtQuick
import QtQuick.Layouts
import QtQuick.Controls

Item {
    Repeater {
        model: 100 // Repeat so the panel doesn't incubate immediately - we need to abort while it's still loading.
        TabBar {
            id: bar
            width: parent.width
            TabButton {
                text: qsTr("Home")
            }
            TabButton {
                text: qsTr("Discover")
            }
            TabButton {
                text: qsTr("Activity")
            }
        }
    }
}

#include <QFile>
#include <QGuiApplication>
#include <QQmlComponent>
#include <QQmlEngine>
#include <QQmlIncubator>
#include <QTimer>
#include <iostream>

void testIncubation(QQmlIncubationController& controller)
{
    for (int i = 0; i < 1000; i++) {
        QQmlIncubator incubator;
        QQmlComponent component(controller.engine(), QUrl("qrc:/main.qml"));
        if (component.isError()) {
            for (const auto& error : component.errors()) {
                std::cerr << error.toString().toStdString() << std::endl;
            }
            exit(-1);
        }
        component.create(incubator);
        controller.incubateFor(i);
        if (controller.incubatingObjectCount() == 0) {
            std::cout << "We've incubated for " << i << " and the component is fully loaded now." << std::endl;
            break;
        }

        incubator.clear();
    }
}

int main(int argc, char* argv[])
{
    QGuiApplication app(argc, argv);
    QQmlEngine engine;
    QQmlIncubationController controller;
    engine.setIncubationController(&controller);
    QTimer::singleShot(1, [&]() {
        testIncubation(controller);
        app.exit(0);
    });

    return app.exec();
}