### 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
for (int i = 0; i < plugins_list.size(); i++) {
		plugins_list[i]->forward_3d_draw_over_viewport(p_overlay);
	}
}
void EditorPluginList::forward_3d_force_draw_over_viewport(Control *p_overlay) {
	for (int i = 0; i < plugins_list.size(); i++) {
		plugins_list[i]->forward_3d_force_draw_over_viewport(p_overlay);
	}
}
void EditorPluginList::add_plugin(EditorPlugin *p_plugin) {
	plugins_list.push_back(p_plugin);
}
void EditorPluginList::remove_plugin(EditorPlugin *p_plugin) {
	plugins_list.erase(p_plugin);
}
bool EditorPluginList::is_empty() {
	return plugins_list.is_empty();
}
void EditorPluginList::clear() {
	plugins_list.clear();
}
EditorPluginList::EditorPluginList() {
}
EditorPluginList::~EditorPluginList() {
}