### Godot version

v4.1.rc1.official [1f9e540f1]

### System information

Windows 10

### Issue description

Attempting to reorder the children of a TabContainer results in an unintended ordering and incorrect undo states.

Also happens in v4.0.3.stable.official [5222a99f5].

https://github.com/godotengine/godot/assets/3820082/2c2458e3-88ad-46d9-8a04-f289a049984a



### Steps to reproduce

1. Add a new TabContainer
2. Add a few children to it
3. Drag and drop to erroneously reorder them
4. Attempt to undo the change

### Minimal reproduction project

N/A
new_node = memnew(Node3D);
						break;
					case TOOL_CREATE_USER_INTERFACE: {
						Control *node = memnew(Control);
						
						node->set_anchors_and_offsets_preset(PRESET_FULL_RECT);
						node->set_grow_direction_preset(PRESET_FULL_RECT);
						new_node = node;
					} break;
				}
			}
			add_root_node(new_node);
			EditorNode::get_singleton()->edit_node(new_node);
			editor_selection->clear();
			editor_selection->add_node(new_node);
			scene_tree->get_scene_tree()->grab_focus();
		} break;
		default: {
			_filter_option_selected(p_tool);
			if (p_tool >= EDIT_SUBRESOURCE_BASE) {
				int idx = p_tool - EDIT_SUBRESOURCE_BASE;
				ERR_FAIL_INDEX(idx, subresources.size());
				Object *obj = ObjectDB::get_instance(subresources[idx]);
				ERR_FAIL_COND(!obj);
				_push_item(obj);
			}
		}
	}
}
void SceneTreeDock::_property_selected(int p_idx) {