Calling SendCustomEvent from AnimationEvent

[ikuko]

Describe the bug in detail: Call SendCustomEvent from AnimationEvent using Animator etc. Some situations cause problems when running in the editor.

Provide steps/code to reproduce the bug:

1. Prepare the following USharp code and set it in UdonBehaviour.

   public class Test : UdonSharpBehaviour
   {
   int num;
   
   private void Start()
   {
       num = 123;
   }
   
   public void Method()
   {
       Debug.Log($"num={num}");
   }
   }

2. Execute SendCustomEvent with "Method" argument in AnimationEvent.

3. When executed in the editor, the following is output to the console.

   num=123
   num=0

   The first output is the result of being run via Udon Behavior. The second output is the result of a reflection run via UdonSharpBehaviour.

Expected behavior: It should only be called once, but it has been called twice. The second call should not be made.

Additional Information: Provide any additional information here.