### 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
bool ret_changed = false;
	List<PropertyInfo> pi;
	obj->get_property_list(&pi);
	for (const PropertyInfo &E : pi) {
		if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
			continue;
		}
		switch (E.type) {
			case Variant::OBJECT: {
				Ref<Resource> res = obj->get(E.name);
				if (_find_and_save_resource(res, processed, flags)) {
					ret_changed = true;
				}
			} break;