### Godot version

4.0 beta 12 mono

### System information

MacOS 13.1, Apple M1 Pro

### Issue description

When `text_editor/external/use_external_editor` is set to true but `text_editor/external/exec_path` is not set and I create a new script and attach it to a node Godot freezes and i need to force quit the application.
Also after a restart when double clicking on the script the application freezes but I can quit normally

### Steps to reproduce

- Set Use External Editor to true in Editor Settings and leave Exec Path empty
- Create a new project with Moblie Renderer and Git Versioning in Godot
- Create a 3D Scene
- Create a gd script in the FileSystem inspector or directly attach the script to a node

### Minimal reproduction project

[New Game Project.zip](https://github.com/godotengine/godot/files/10420510/New.Game.Project.zip)

struct Cache {
		uint64_t time_loaded = 0;
		Ref<Resource> cache;
	};
	HashMap<String, Cache> cached;
public:
	uint64_t max_time_cache = 5 * 60 * 1000; 
	uint32_t max_cache_size = 128;
	void cleanup() {
		List<String> to_clean;
		HashMap<String, Cache>::Iterator I = cached.begin();
		while (I) {
			if ((OS::get_singleton()->get_ticks_msec() - I->value.time_loaded) > max_time_cache) {
				to_clean.push_back(I->key);
			}
			++I;
		}
		while (to_clean.front()) {
			cached.erase(to_clean.front()->get());
			to_clean.pop_front();
		}
	}
	virtual Ref<Resource> get_cached_resource(const String &p_path) {