### Godot version

4.1.1.stable

### System information

Godot v4.1.1.stable - Windows 10.0.19045 - Vulkan (Mobile) - dedicated NVIDIA GeForce RTX 2070 SUPER (NVIDIA; 30.0.15.1295) - Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz (6 Threads)

### Issue description

When undocking the script editor so that it's floating, CollisionShape3D Shape Size handles stop working.

If they were visible on a Shape, they remain visible on that shape and still work for that shape; but they will not appear on any other collision object when selecting it.

If you launch the editor with the Script panel already in a floating state, no shape handles ever become visible.

If you dock the Script editor again, everything goes back to normal and works fine.

### Steps to reproduce

Create a 3D scene with some collision shapes.
Undock the Script editor

### Minimal reproduction project

N/A
if (r_error) {
		*r_error = ERR_FILE_CANT_OPEN;
	}
	String local_path = ProjectSettings::get_singleton()->localize_path(p_path);
	String path = ResourceLoader::path_remap(local_path);
	TextFile *text_file = memnew(TextFile);
	Ref<TextFile> text_res(text_file);
	Error err = text_file->load_text(path);
	ERR_FAIL_COND_V_MSG(err != OK, Ref<Resource>(), "Cannot load text file '" + path + "'.");
	text_file->set_file_path(local_path);
	text_file->set_path(local_path, true);
	if (ResourceLoader::get_timestamp_on_load()) {
		text_file->set_last_modified_time(FileAccess::get_modified_time(path));
	}
	if (r_error) {
		*r_error = OK;
	}
	return text_res;
}
Error ScriptEditor::_save_text_file(Ref<TextFile> p_text_file, const String &p_path) {