Bug all data in a custom function node is lost when the hlsl it refers to is moved - wow!

that's quite terrible that a graph would lose reference when moved, I mean the entire idea of a SG is that it makes life easier and at least consistent with the rest of the editor, nothing else in Unity loses reference when moved, and on top of that it hides all data that was referenced, it also hides the former path of what it used to reference to... wow