Warn about exception on `change_scene_to_packed` when comming back to same `PackedScene`

**Your Godot version:** 4.2.1

**Issue description:** I had a scenario with two scenes, where the 2nd pointed back to the 1st in the sense of an export `PackedScene` variable and an invocation of `get_tree().change_scene_to_packed()` when a button is pressed. I struggled when trying to understand why I was having errors when coming back to the 1st scene from the 2nd; after reading different responses from forums, it seemed to be that when changing to the 2nd scene, the 1st is disposed in the sense that it cannot be used again in `get_tree().change_scene_to_packed(exported_packed_scene)`.

I wonder if the docs for `change_scene_to_packed()` could both warn about this issue and point to other way of changing scenes when there's a cyclic dependency between them. Any ideas?

**URL to the documentation page (if already existing):** https://docs.godotengine.org/en/stable/classes/class_scenetree.html#class-scenetree-method-change-scene-to-packed