### Godot version

v4.1.1.stable.official [bd6af8e0e]

### System information

Godot v4.1.1.stable - Debian GNU/Linux trixie/sid trixie - Vulkan (Compatibility) - Mesa Intel(R) HD Graphics 520 (SKL GT2) () - Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz (4 Threads)

### Issue description

After right clicking in thet "Filter Nodes" menu in the scene tree dock, the sub-menu is populated with a "Search" icon.

If I later switch themes in the same session, this icon is never updated to match the new theme.

![image](https://github.com/godotengine/godot/assets/660911/14336bb3-12ca-48c8-b030-8ada6ac27ec6)


### Steps to reproduce

1. Right click in the "Filter Nodes" menu in scene tree dock
2. Switch themes
3. Right click again in the "Filter Nodes" menu

Expected result: Icon has updated to match the theme I am currently using
Actual result: Icon is still using the theme I launched Godot with

### Minimal reproduction project

N/A
}
	}
	String newname = n->get_name();
	List<Node *> to_erase;
	for (int i = 0; i < n->get_child_count(); i++) {
		if (n->get_child(i)->get_owner() == nullptr && n->is_owned_by_parent()) {
			to_erase.push_back(n->get_child(i));
		}
	}
	n->replace_by(newnode, true);
	
	for (int i = 0; i < newnode->get_child_count(); i++) {
		Node *c = newnode->get_child(i);
		c->call("set_transform", c->call("get_transform"));
	}
	
	if (p_remove_old) {
		EditorUndoRedoManager::get_singleton()->clear_history();
	}
	newnode->set_name(newname);
	_push_item(newnode);
	if (p_remove_old) {
		memdelete(n);
		while (to_erase.front()) {
			memdelete(to_erase.front()->get());
			to_erase.pop_front();
		}
	}
}
void SceneTreeDock::set_edited_scene(Node *p_scene) {