### 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)

if (p_resource.is_null()) {
		return false;
	}
	Ref<Script> scr = p_resource;
	
	bool use_external_editor =
			EDITOR_GET("text_editor/external/use_external_editor") ||
			(scr.is_valid() && scr->get_language()->overrides_external_editor());
	use_external_editor = use_external_editor && !(scr.is_valid() && scr->is_built_in()); 
	const bool open_dominant = EDITOR_GET("text_editor/behavior/files/open_dominant_script_on_scene_change");
	const bool should_open = (open_dominant && !use_external_editor) || !EditorNode::get_singleton()->is_changing_scene();
	if (scr.is_valid() && scr->get_language()->overrides_external_editor()) {
		if (should_open) {
			Error err = scr->get_language()->open_in_external_editor(scr, p_line >= 0 ? p_line : 0, p_col);
			if (err != OK) {
				ERR_PRINT("Couldn't open script in the overridden external text editor");
			}
		}
		return false;
	}
	if (use_external_editor &&
			(EditorDebuggerNode::get_singleton()->get_dump_stack_script() != p_resource || EditorDebuggerNode::get_singleton()->get_debug_with_external_editor()) &&