### 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 (!app_args.is_empty()) {
				args.push_back("--args");
				args.push_back(app_args);
			}
			String idepl = EDITOR_GET("export/ios/ios_deploy");
			if (idepl.is_empty()) {
				idepl = "ios-deploy";
			}
			String log;
			int ec;
			err = OS::get_singleton()->execute(idepl, args, &log, &ec, true);
			if (err != OK) {
				add_message(EXPORT_MESSAGE_WARNING, TTR("Run"), TTR("Could not start ios-deploy executable."));
				CLEANUP_AND_RETURN(err);
			}
			if (ec != 0) {
				print_line("ios-deploy:\n" + log);
				add_message(EXPORT_MESSAGE_ERROR, TTR("Run"), TTR("Installation/running failed, see editor log for details."));
				CLEANUP_AND_RETURN(ERR_UNCONFIGURED);
			}
		}
	}
	CLEANUP_AND_RETURN(OK);
#undef CLEANUP_AND_RETURN
#else
	return ERR_UNCONFIGURED;
#endif
}
EditorExportPlatformIOS::EditorExportPlatformIOS() {