### 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
for (int i = p_start; i < editor_data.get_edited_scene_count(); i++) {
		if (!editor_data.get_edited_scene_root(i)) {
			continue;
		}
		String scene_filename = editor_data.get_edited_scene_root(i)->get_scene_file_path();
		if (p_valid_filename && scene_filename.is_empty()) {
			continue;
		}
		bool unsaved = EditorUndoRedoManager::get_singleton()->is_history_unsaved(editor_data.get_scene_history_id(i));
		if (unsaved) {
			return i;
		} else {
			for (int j = 0; j < editor_data.get_editor_plugin_count(); j++) {
				if (!editor_data.get_editor_plugin(j)->get_unsaved_status(scene_filename).is_empty()) {
					return i;
				}
			}
		}
	}
	return -1;
}
void EditorNode::_exit_editor(int p_exit_code) {