### Tested versions

Godot Engine v4.2.stable.official.46dc27791

### System information

Windows 10

### Issue description

When exporting to web, Godot fails with this error in the console:

> scene/main/window.cpp:884 - Attempting to make child window exclusive, but the parent window already has another exclusive child. This window: /root/@<!-- -->EditorNode@<!-- -->17120/@<!-- -->Panel@<!-- -->13/@<!-- -->ProjectExportDialog@<!-- -->559/@<!-- -->VBoxContainer@<!-- -->137/@<!-- -->AcceptDialog@<!-- -->411, parent window: /root/@<!-- -->EditorNode@<!-- -->17120/@<!-- -->Panel@<!-- -->13/@<!-- -->ProjectExportDialog@<!-- -->559, current exclusive child window: /root/@<!-- -->EditorNode@<!-- -->17120/@<!-- -->Panel@<!-- -->13/@<!-- -->ProjectExportDialog@<!-- -->559/@<!-- -->ProgressDialog@<!-- -->17444

![a](https://github.com/godotengine/godot/assets/2000051/bf9d22aa-d3fe-4e11-bff6-c387e740fe90)

This happens for newly created empty projects.


### Steps to reproduce

1. Open the attached project (or create a new project).
2. Project->Export->Export All
3. Observe the console error.  No output files are generated.


### Minimal reproduction project (MRP)

[export_test.zip](https://github.com/godotengine/godot/files/13574810/export_test.zip)

if (EditorNode::get_singleton()) {
#ifdef MODULE_SVG_ENABLED
		Ref<Image> img = memnew(Image);
		const bool upsample = !Math::is_equal_approx(Math::round(EDSCALE), EDSCALE);
		ImageLoaderSVG::create_image_from_string(img, _ios_logo_svg, EDSCALE, upsample, false);
		logo = ImageTexture::create_from_image(img);
		ImageLoaderSVG::create_image_from_string(img, _ios_run_icon_svg, EDSCALE, upsample, false);
		run_icon = ImageTexture::create_from_image(img);
#endif
		plugins_changed.set();
		devices_changed.set();
#ifdef MACOS_ENABLED
		check_for_changes_thread.start(_check_for_changes_poll_thread, this);
#endif
	}
}
EditorExportPlatformIOS::~EditorExportPlatformIOS() {
#ifdef MACOS_ENABLED
	quit_request.set();
	if (check_for_changes_thread.is_started()) {
		check_for_changes_thread.wait_to_finish();
	}
#endif
}