### Godot version

4.0 fb10f45

### System information

Windows 10 x64

### Issue description

Behold, empty TileSet editor, with no TileMap node nor bottom button visible:
![image](https://github.com/godotengine/godot/assets/2223172/0f052770-4946-40eb-a790-a995dbe2599c)
Regression from #72277 (most likely, I didn't test)

### Steps to reproduce

1. Add some Node to your scene
2. Add a TileMap as a child
3. Select TileMap
4. Fold its parent in the scene tree
5. Restart the editor
6. The TileMap selection is restored and so is the folded node, resulting in a weird paradox

### Minimal reproduction project

N/A
if (!animation->has_selectable_items()) {
		return;
	}
	String current = animation->get_item_text(animation->get_selected());
	EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
	undo_redo->create_action(TTR("Blend Next Changed"));
	undo_redo->add_do_method(player, "animation_set_next", current, blend_editor.next->get_item_text(p_idx));
	undo_redo->add_undo_method(player, "animation_set_next", current, player->animation_get_next(current));
	undo_redo->add_do_method(this, "_animation_player_changed", player);
	undo_redo->add_undo_method(this, "_animation_player_changed", player);
	undo_redo->commit_action();
}
void AnimationPlayerEditor::_animation_blend() {
	if (updating_blends) {
		return;
	}
	blend_editor.tree->clear();
	if (!animation->has_selectable_items()) {
		return;
	}
	String current = animation->get_item_text(animation->get_selected());
	blend_editor.dialog->popup_centered(Size2(400, 400) * EDSCALE);
	blend_editor.tree->set_hide_root(true);
	blend_editor.tree->set_column_expand_ratio(0, 10);
	blend_editor.tree->set_column_clip_content(0, true);
	blend_editor.tree->set_column_expand_ratio(1, 3);
	blend_editor.tree->set_column_clip_content(1, true);
	List<StringName> anims;