### Godot version

4.1.dev (dc625bcbfc5b587ba8867481ee7a1f6a567c25d0)

### System information

Mageia 9, Linux

### Issue description

When importing a project in current `master`, the following error is raised for each asset that gets imported:
```
Attempting to parent and popup a dialog that already has a parent.
```

It seems to be raised once per asset, caused by the progress dialog.

CC @bruvzg

### Steps to reproduce

- Import a new project in Godot that contains importable assets, e.g. https://github.com/RPicster/godot4-demo-desert-light

### Minimal reproduction project

See above.
EditorInspector::cleanup_plugins();
	EditorTranslationParser::get_singleton()->clean_parsers();
	ResourceImporterScene::clean_up_importer_plugins();
	remove_print_handler(&print_handler);
	EditorHelp::cleanup_doc();
	memdelete(editor_selection);
	memdelete(editor_plugins_over);
	memdelete(editor_plugins_force_over);
	memdelete(editor_plugins_force_input_forwarding);
	memdelete(progress_hb);
	EditorSettings::destroy();
}
/*
 * EDITOR PLUGIN LIST
 */
void EditorPluginList::make_visible(bool p_visible) {