### 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
}
		
		if (String(scr->get_instance_base_type()) != "EditorPlugin") {
			show_warning(vformat(TTR("Unable to load addon script from path: '%s' Base type is not EditorPlugin."), script_path));
			return;
		}
		if (!scr->is_tool()) {
			show_warning(vformat(TTR("Unable to load addon script from path: '%s' Script is not in tool mode."), script_path));
			return;
		}
	}
	EditorPlugin *ep = memnew(EditorPlugin);
	ep->set_script(scr);
	addon_name_to_plugin[addon_path] = ep;
	add_editor_plugin(ep, p_config_changed);
	_update_addon_config();
}
bool EditorNode::is_addon_plugin_enabled(const String &p_addon) const {
	if (p_addon.begins_with("res:")) {
		return addon_name_to_plugin.has(p_addon);
	}
	return addon_name_to_plugin.has("res:addons/" + p_addon + "/plugin.cfg");
}
void EditorNode::set_movie_maker_enabled(bool p_enabled) {
	write_movie_button->set_pressed(p_enabled);
}
bool EditorNode::is_movie_maker_enabled() const {
	return write_movie_button->is_pressed();
}
void EditorNode::_remove_edited_scene(bool p_change_tab) {