### 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)

for (int i = 0; i < tab_container->get_tab_count(); i++) {
		ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_tab_control(i));
		if (!se) {
			continue;
		}
		if (se->get_meta("_edit_res_path") == p_removed_file) {
			
			_close_tab(i, false, false);
		}
	}
	
	if (script_editor_cache->has_section(p_removed_file)) {
		Array breakpoints = _get_cached_breakpoints_for_script(p_removed_file);
		for (int i = 0; i < breakpoints.size(); i++) {
			EditorDebuggerNode::get_singleton()->set_breakpoint(p_removed_file, (int)breakpoints[i] + 1, false);
		}
		script_editor_cache->erase_section(p_removed_file);
	}
}
void ScriptEditor::_update_find_replace_bar() {
	ScriptEditorBase *se = _get_current_editor();
	if (se) {
		se->set_find_replace_bar(find_replace_bar);
	} else {
		find_replace_bar->set_text_edit(nullptr);
		find_replace_bar->hide();
	}
}
void ScriptEditor::_autosave_scripts() {