### 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
msg = vformat(TTR("Delete node \"%s\"?"), node->get_name());
						}
					}
					if (has_tracks_to_delete) {
						if (!msg.is_empty()) {
							msg += "\n";
						}
						msg += TTR("Some nodes are referenced by animation tracks.");
						delete_tracks_checkbox->show();
					} else {
						delete_tracks_checkbox->hide();
					}
				}
				delete_dialog_label->set_text(msg);
				
				
				
				delete_dialog->reset_size();
				delete_dialog->popup_centered();
			}
		} break;
		case TOOL_NEW_SCENE_FROM: {
			if (!profile_allow_editing) {
				break;
			}
			Node *scene = editor_data->get_edited_scene_root();
			if (!scene) {
				accept->set_text(TTR("Saving the branch as a scene requires having a scene open in the editor."));
				accept->popup_centered();
				break;