### 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
docks_visible = p_show;
	_update_dock_slots_visibility(true);
}
bool EditorNode::get_docks_visible() const {
	return docks_visible;
}
void EditorNode::_toggle_distraction_free_mode() {
	if (EDITOR_GET("interface/editor/separate_distraction_mode")) {
		int screen = -1;
		for (int i = 0; i < editor_table.size(); i++) {
			if (editor_plugin_screen == editor_table[i]) {
				screen = i;
				break;
			}
		}
		if (screen == EDITOR_SCRIPT) {
			script_distraction_free = !script_distraction_free;
			set_distraction_free_mode(script_distraction_free);
		} else {
			scene_distraction_free = !scene_distraction_free;
			set_distraction_free_mode(scene_distraction_free);
		}
	} else {
		set_distraction_free_mode(distraction_free->is_pressed());
	}
}
void EditorNode::set_distraction_free_mode(bool p_enter) {