### 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 (!bool(EDITOR_GET("interface/scene_tabs/restore_scenes_on_load"))) {
		return;
	}
	if (!p_layout->has_section(p_section) || !p_layout->has_section_key(p_section, "open_scenes")) {
		return;
	}
	restoring_scenes = true;
	Array scenes = p_layout->get_value(p_section, "open_scenes");
	for (int i = 0; i < scenes.size(); i++) {
		load_scene(scenes[i]);
	}
	save_layout();
	restoring_scenes = false;
}
bool EditorNode::has_scenes_in_session() {