### Godot version

4.1

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description


https://github.com/godotengine/godot/assets/2223172/852654b0-dadd-411e-8fe5-f9c00492a497



### Steps to reproduce

1. Add a Node to the scene
2. Right click it and mark it as unique name
3. Start renaming the node
4. Press Enter

### Minimal reproduction project

N/A
TreeItem *which = tree->get_edited();
	ERR_FAIL_COND(!which);
	NodePath np = which->get_metadata(0);
	Node *n = get_node(np);
	ERR_FAIL_COND(!n);
	String new_name = which->get_text(0);
	if (new_name.strip_edges().is_empty()) {
		// If name is empty, fallback to class name.
		if (GLOBAL_GET("editor/naming/node_name_casing").operator int() != NAME_CASING_PASCAL_CASE) {
			new_name = Node::adjust_name_casing(n->get_class());
		} else {
			new_name = n->get_class();
		}
	}
	if (n->is_unique_name_in_owner() && get_tree()->get_edited_scene_root()->get_node_or_null("%" + new_name) != nullptr) {
		error->set_text(TTR("Another node already uses this unique name in the scene."));
		error->popup_centered();
		which->set_text(0, n->get_name());
		return;
	}
	_rename_node(n, new_name);
}
Node *SceneTreeEditor::get_selected() {