### 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 (current_menu_option == RELOAD_CURRENT_PROJECT) {
			save_confirmation->set_ok_button_text(TTR("Save & Reload"));
			save_confirmation->set_text(unsaved_message + "\n\n" + TTR("Save before reloading?"));
		} else {
			save_confirmation->set_ok_button_text(TTR("Save & Close"));
			save_confirmation->set_text(unsaved_message + "\n\n" + TTR("Save before closing?"));
		}
		save_confirmation->reset_size();
		save_confirmation->popup_centered();
	} else {
		_discard_changes();
	}
	save_editor_layout_delayed();
	_update_scene_tabs();
}
void EditorNode::_scene_tab_hovered(int p_tab) {
	if (!bool(EDITOR_GET("interface/scene_tabs/show_thumbnail_on_hover"))) {
		return;
	}
	int current_tab = scene_tabs->get_current_tab();
	if (p_tab == current_tab || p_tab < 0) {
		tab_preview_panel->hide();
	} else {
		String path = editor_data.get_scene_path(p_tab);
		if (!path.is_empty()) {
			EditorResourcePreview::get_singleton()->queue_resource_preview(path, this, "_thumbnail_done", p_tab);
		}
	}
}
void EditorNode::_scene_tab_exit() {