### 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 (!FileAccess::exists("/usr/bin/codesign") && !FileAccess::exists("/bin/codesign")) {
				add_message(EXPORT_MESSAGE_ERROR, TTR("Code Signing"), TTR("Xcode command line tools are not installed."));
				return Error::FAILED;
			
			bool  (p_preset->get("codesign/identity") == "" || p_preset->get("codesign/identity") == "-");
			List<String> args;
			if (!ad_hoc) {
				args.push_back("--timestamp");
				args.push_back("--options");
				args.push_back("runtime");
			
			if (p_path.get_extension() != "dmg") {
				args.push_back("--entitlements");
				args.push_back(p_ent_path);
			
			PackedStringArray user_args = p_preset->get("codesign/custom_options");
			for (int i = 0; i < user_args.size(); i++) {
				String user_arg = user_args[i].strip_edges();
				if (!user_arg.is_empty()) {
					args.push_back(user_arg);
				
			
			args.push_back("-s");
			if (ad_hoc) {
				args.push_back("-");
			 else {
				args.push_back(p_preset->get("codesign/identity"));
			
			args.push_back("-v"); /* provide some more feedback */
			args.push_back("-f");