### 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)

"// Exported Plugins\n\n"
								 "$definition"
								 "// Use Plugins\n"
								 "void godot_ios_plugins_initialize() {\n"
								 "$initialization"
								 "}\n\n"
								 "void godot_ios_plugins_deinitialize() {\n"
								 "$deinitialization"
								 "}\n";
		p_config_data.cpp_code += plugin_cpp_code.format(plugin_format, "$_");
	}
	
	{
		String result_linker_flags = " ";
		for (const String &E : plugin_linker_flags) {
			const String &flag = E;
			if (flag.length() == 0) {
				continue;
			}
			if (result_linker_flags.length() > 0) {
				result_linker_flags += ' ';
			}
			result_linker_flags += flag;
		}
		result_linker_flags = result_linker_flags.replace("\"", "\\\"");
		p_config_data.linker_flags += result_linker_flags;
	}
	return OK;
}
Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags) {