### 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
PopupMenu *menu = file_menu->get_popup();
	menu->set_item_disabled(menu->get_item_index(FILE_REOPEN_CLOSED), false);
	menu->set_item_disabled(menu->get_item_index(FILE_SAVE), false);
	menu->set_item_disabled(menu->get_item_index(FILE_SAVE_AS), false);
	menu->set_item_disabled(menu->get_item_index(FILE_SAVE_ALL), false);
	menu->set_item_disabled(menu->get_item_index(FILE_TOOL_RELOAD_SOFT), false);
	menu->set_item_disabled(menu->get_item_index(FILE_COPY_PATH), false);
	menu->set_item_disabled(menu->get_item_index(SHOW_IN_FILE_SYSTEM), false);
	menu->set_item_disabled(menu->get_item_index(WINDOW_PREV), false);
	menu->set_item_disabled(menu->get_item_index(WINDOW_NEXT), false);
	menu->set_item_disabled(menu->get_item_index(FILE_CLOSE), false);
	menu->set_item_disabled(menu->get_item_index(CLOSE_ALL), false);
	menu->set_item_disabled(menu->get_item_index(CLOSE_OTHER_TABS), false);
	menu->set_item_disabled(menu->get_item_index(CLOSE_DOCS), false);
	menu->set_item_disabled(menu->get_item_index(FILE_RUN), false);
}
void ScriptEditor::_tab_changed(int p_which) {
	ensure_select_current();
}
void ScriptEditor::_notification(int p_what) {