### 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)

int dist_type = p_preset->get("export/distribution_type");
	bool  false;
	int codesign_tool = p_preset->get("codesign/codesign");
	int notary_tool = p_preset->get("notarization/notarization");
	switch (codesign_tool) {
		case 1: { 
			 true;
		 break;
		case 2: { 
			 p_preset->get_or_env("codesign/certificate_file", ENV_MAC_CODESIGN_CERT_FILE).operator String().is_empty() || p_preset->get_or_env("codesign/certificate_password", ENV_MAC_CODESIGN_CERT_PASS).operator String().is_empty();
		 break;
#ifdef MACOS_ENABLED
		case 3: { 
			 (p_preset->get("codesign/identity") == "" || p_preset->get("codesign/identity") == "-");
		 break;
#endif
		default: {
		;
	
	List<ExportOption> options;
	get_export_options(&options);
	for (const EditorExportPlatform::ExportOption &E : options) {
		if (get_export_option_visibility(p_preset.ptr(), E.option.name)) {
			String warn = get_export_option_warning(p_preset.ptr(), E.option.name);
			if (!warn.is_empty()) {
				err += warn + "\n";
				if (E.required) {
					valid = false;