### 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)

file_dialog->set_current_dir(text_file->get_path().get_base_dir());
					file_dialog->set_current_file(text_file->get_path().get_file());
					file_dialog->popup_file_dialog();
					file_dialog->set_title(TTR("Save File As..."));
					break;
				}
				if (scr.is_valid()) {
					clear_docs_from_script(scr);
				}
				EditorNode::get_singleton()->push_item(resource.ptr());
				EditorNode::get_singleton()->save_resource_as(resource);
				if (scr.is_valid()) {
					update_docs_from_script(scr);
				}
			} break;
			case FILE_TOOL_RELOAD_SOFT: {
				Ref<Script> scr = current->get_edited_resource();
				if (scr == nullptr || scr.is_null()) {
					EditorNode::get_singleton()->show_warning(TTR("Can't obtain the script for reloading."));
					break;
				}
				if (!scr->is_tool()) {
					EditorNode::get_singleton()->show_warning(TTR("Reload only takes effect on tool scripts."));
					return;
				}
				scr->reload(true);
			} break;
			case FILE_RUN: {
				Ref<Script> scr = current->get_edited_resource();
				if (scr == nullptr || scr.is_null()) {