### 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)

versions.append_array(other_versions);
	if (!versions.size()) {
		print_error("Unable to find the 'apksigner' tool.");
		return apksigner_path;
	}
	int i;
	bool failed = false;
	String version_to_use;
	List<String> args;
	args.push_back("--version");
	String output;
	int retval;
	Error err;
	for (i = 0; i < versions.size(); i++) {
		
		apksigner_path = build_tools_dir.path_join(versions[i]).path_join(apksigner_command_name);
		if (FileAccess::exists(apksigner_path)) {
			version_to_use = versions[i];
			
			if (!p_check_executes) {
				break;
			}
			
			err = OS::get_singleton()->execute(apksigner_path, args, &output, &retval, false);
			if (err || retval) {
				failed = true;
			} else {
				break;
			}
		}