### 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
file_dialog->set_file_mode(EditorFileDialog::FILE_MODE_SAVE_FILE);
	file_dialog->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
	file_dialog_option = THEME_SAVE_AS;
	file_dialog->clear_filters();
	file_dialog->add_filter("*.tet");
	file_dialog->set_current_path(EditorPaths::get_singleton()->get_text_editor_themes_dir().path_join(EDITOR_GET("text_editor/theme/color_theme")));
	file_dialog->popup_file_dialog();
	file_dialog->set_title(TTR("Save Theme As..."));
}
bool ScriptEditor::_has_docs_tab() const {
	const int child_count = tab_container->get_tab_count();
	for (int i = 0; i < child_count; i++) {
		if (Object::cast_to<EditorHelp>(tab_container->get_tab_control(i))) {
			return true;
		}
	}
	return false;
}
bool ScriptEditor::_has_script_tab() const {