The page on changing scenes should warn about cyclic dependencies

**Your Godot version:**

4.2.stable.official [46dc27791]

**Issue description:**

The documentation should warn that two scenes switching between each other with PackedScene will cause unexpected behavior.

I experienced unexpected behavior and file corruption when I tried to do this. I created an issue for it in the code repo here: https://github.com/godotengine/godot/issues/85986

**URL to the documentation page:**

https://docs.godotengine.org/en/stable/tutorials/scripting/scene_tree.html#changing-current-scene