### Godot version

v4.0.beta.custom_build [fab9926a9]

### System information

Fedora 37

### Issue description

When creating a new inherited scene, saving the scene (for example with Ctrl+S) defaults to overwriting the scene being inherited, instead of prompting for a location to save to.

### Steps to reproduce

1. Create a new inherited scene
2. Press Ctrl+S

If the scene being inherited is imported (for example from a glTF), an error displays. If the inherited scene is a .tscn or .scn, it gets overridden by an inherited scene that tries to inherit itself, which is impossible and thus corrupt.

### Minimal reproduction project

N/A
for (int i = 0; i < editor_data.get_edited_scene_count(); i++) {
		Node *scene = editor_data.get_edited_scene_root(i);
		if (scene && (p_scene_filenames.find(scene->get_scene_file_path()) >= 0)) {
			_save_scene(scene->get_scene_file_path(), i);
		}
	}
}
void EditorNode::restart_editor() {
	exiting = true;
	if (editor_run.get_status() != EditorRun::STATUS_STOP) {
		editor_run.stop();
	}
	String to_reopen;
	if (get_tree()->get_edited_scene_root()) {
		to_reopen = get_tree()->get_edited_scene_root()->get_scene_file_path();
	}
	_exit_editor(EXIT_SUCCESS);
	List<String> args;
	for (const String &a : Main::get_forwardable_cli_arguments(Main::CLI_SCOPE_TOOL)) {
		args.push_back(a);
	}
	args.push_back("--path");
	args.push_back(ProjectSettings::get_singleton()->get_resource_path());
	args.push_back("-e");
	if (!to_reopen.is_empty()) {
		args.push_back(to_reopen);
	}
	OS::get_singleton()->set_restart_on_exit(true, args);
}
void EditorNode::_save_all_scenes() {