### 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
settings_changed = true;
}
EditorNode::EditorNode() {
	EditorPropertyNameProcessor *epnp = memnew(EditorPropertyNameProcessor);
	add_child(epnp);
	PortableCompressedTexture2D::set_keep_all_compressed_buffers(true);
	Input::get_singleton()->set_use_accumulated_input(true);
	Resource::_get_local_scene_func = _resource_get_edited_scene;
	RenderingServer::get_singleton()->set_debug_generate_wireframes(true);
	AudioServer::get_singleton()->set_enable_tagging_used_audio_streams(true);
	
	if (NavigationServer3D::get_singleton()->get_debug_enabled()) {
		NavigationServer3D::get_singleton()->set_active(true);
	} else {
		NavigationServer3D::get_singleton()->set_active(false);
	}
	
	PhysicsServer3D::get_singleton()->set_active(false);
	PhysicsServer2D::get_singleton()->set_active(false);
	
	ScriptServer::set_scripting_enabled(false);
	EditorHelp::generate_doc(); 
	SceneState::set_disable_placeholders(true);
	ResourceLoader::clear_translation_remaps(); 
	ResourceLoader::clear_path_remaps();
	ResourceLoader::set_create_missing_resources_if_class_unavailable(true);
	Input *id = Input::get_singleton();
	if (id) {
		if (!DisplayServer::get_singleton()->is_touchscreen_available() && Input::get_singleton()) {