### 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)

String ret = "Unnamed";
	GDVIRTUAL_CALL(_get_name, ret);
	return ret;
}
PackedStringArray EditorSyntaxHighlighter::_get_supported_languages() const {
	PackedStringArray ret;
	GDVIRTUAL_CALL(_get_supported_languages, ret);
	return ret;
}
Ref<EditorSyntaxHighlighter> EditorSyntaxHighlighter::_create() const {
	Ref<EditorSyntaxHighlighter> syntax_highlighter;
	syntax_highlighter.instantiate();
	if (get_script_instance()) {
		syntax_highlighter->set_script(get_script_instance()->get_script());
	}
	return syntax_highlighter;
}
void EditorSyntaxHighlighter::_bind_methods() {
	ClassDB::bind_method(D_METHOD("_get_edited_resource"), &EditorSyntaxHighlighter::_get_edited_resource);
	GDVIRTUAL_BIND(_get_name)
	GDVIRTUAL_BIND(_get_supported_languages)
}
void EditorStandardSyntaxHighlighter::_update_cache() {