Crash when dereferencing a deleted QRhi after native window is re-created

#include <QtWidgets/QApplication>
#include <QtWidgets/QWidget>
#include <QtOpenGLWidgets/QOpenGLWidget>
#include <QtCore/QTimer>
#include <QtWebEngineWidgets/QWebEngineView>
#include <QtQuick/QQuickWindow>

int main(int argc, char** argv)
{
	QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGL);
	QApplication app(argc, argv);

	// tlw: red.
	QWidget tlw;
	tlw.resize(640, 480);
	tlw.setStyleSheet("QWidget { background-color: red; }");

	// quick: cause tlw to be opengl and own an opengl rhi
	QWebEngineView web1(&tlw);
	web1.setUrl(QUrl("chrome://gpu"));
	web1.setGeometry(0, 0, 640, 240);

	// workspace: raster by default
	QWidget workspace(&tlw);
	workspace.setGeometry(0, 240, 640, 240);
	workspace.winId();
	workspace.setStyleSheet("QWidget { background-color: blue; }");
	
	// wait for the quick to refresh. defer to page loaded.
	QObject::connect(&web1, &QWebEngineView::loadFinished, [&]() {
		// gl: cause tlw & workspace window to be re-created. rhi is deleted.
		// Qt crash when using the deleted rhi.
		QOpenGLWidget* gl = new QOpenGLWidget(&workspace);
		gl->setGeometry(0, 0, 640, 240);
	});

	tlw.show();
	return app.exec();
}

#include <QtWidgets/QApplication>
#include <QtWidgets/QWidget>
#include <QtWebEngineWidgets/QWebEngineView>

int main(int argc, char** argv)
{
	QApplication app(argc, argv);

	// tlw: red.
	QWidget tlw;
	tlw.resize(640, 480);
	tlw.setStyleSheet("QWidget { background-color: red; }");

	// quick: cause tlw to be opengl and own an opengl rhi
	QWebEngineView web1(&tlw);
	web1.setUrl(QUrl("chrome://gpu"));
	web1.setGeometry(0, 0, 640, 240);

	// workspace: raster by default
	QWidget workspace(&tlw);
	workspace.setGeometry(0, 240, 640, 240);
	workspace.winId();
	workspace.setStyleSheet("QWidget { background-color: blue; }");
	
	// wait for the quick to refresh. defer to page loaded.
	QObject::connect(&web1, &QWebEngineView::loadFinished, [&]() {
		QWebEngineView* web2 = new QWebEngineView(&workspace);
		web2->setGeometry(0, 0, 640, 240);
		web2->setUrl(QUrl("chrome://gpu"));
	});

	tlw.show();
	return app.exec();
}

(lldb) bt 10
* thread #1, name = 'CrBrowserMain', queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
  * frame #0: 0x0000000102b37d67 QtGui`QRhi::isRecordingFrame(this=0x0000600000013420) const at qrhi.cpp:7641:15 [opt]
    frame #1: 0x00000001032d22cb QtQuick`QQuickRenderControl::beginFrame(this=<unavailable>) at qquickrendercontrol.cpp:620:28 [opt]
    frame #2: 0x0000000100a45bb6 QtQuickWidgets`QQuickWidgetPrivate::render(this=0x0000000101b29a30, needsSync=true) at qquickwidget.cpp:346:24 [opt]
    frame #3: 0x0000000100a46691 QtQuickWidgets`QQuickWidgetPrivate::renderSceneGraph(this=0x0000000101b29a30) at qquickwidget.cpp:404:5 [opt]
    frame #4: 0x00000001010f2ad7 QtCore`QObject::event(this=0x0000600002932990, e=0x00007ff7bfefd928) at qobject.cpp:1415:9 [opt]
    frame #5: 0x00000001003718da QtWidgets`QWidget::event(this=0x0000600002932990, event=0x00007ff7bfefd928) at qwidget.cpp:9381:25 [opt]
    frame #6: 0x0000000100a49cb7 QtQuickWidgets`QQuickWidget::event(this=0x0000600002932990, e=0x00007ff7bfefd928) at qquickwidget.cpp:1725:21 [opt]
    frame #7: 0x00000001000a3541 QtWebEngineWidgets`QtWebEngineCore::WebEngineQuickWidget::event(this=0x0000600002932990, event=0x00007ff7bfefd928) at qwebengineview.cpp:345:30 [opt]
    frame #8: 0x000000010031eb77 QtWidgets`QApplicationPrivate::notify_helper(this=<unavailable>, receiver=0x0000600002932990, e=0x00007ff7bfefd928) at qapplication.cpp:3290:26 [opt]
    frame #9: 0x000000010031fa13 QtWidgets`QApplication::notify(this=0x00007ff7bfeff260, receiver=<unavailable>, e=<unavailable>) at qapplication.cpp:0 [opt]