All optional method arguments are default past first argument that defaults.

[Soggy-Pancake]

Describe the bug in detail: All optional arguments after the first optional argument that defaults appear to also default, even if they are given a value when calling.

Provide steps/code to reproduce the bug: Steps or code to reproduce the behavior.

using UdonSharp;
using UnityEngine;
using VRC.SDKBase;
using VRC.Udon;

public class OptionalTest : UdonSharpBehaviour
{
    void optionalArg(string str, int check = 0) {
        Debug.Log($"Optional arg test! Optional ver: str {str}  int {check}");
    }

    void moreOptionalArg(string str, int check = 0, int doubleCheck = 0, float evenMoreNum = 0f) {
        Debug.Log($"Optional arg test! Required ver: str {str}  int: {check} doubleCheck: {doubleCheck}, evenMore: {evenMoreNum}");
    }

    void requiredArg(string str, int check) {
        Debug.Log($"Optional arg test! Required ver: str {str}  int {check}");
    }

    void Start()
    {
        Debug.Log("Optional arg test! START");
        optionalArg("optional1", check: 25);
        requiredArg("required2", 17);
        moreOptionalArg("maybeBroken", doubleCheck: 69);
        moreOptionalArg("idk Anymore", check: -5, doubleCheck: -8);
    moreOptionalArg("maybeJustFirst?", check: 69);
        moreOptionalArg("even MORE testing", check: 8, evenMoreNum: 8.4f);

    }
}

Log as text:

Optional arg test! START
Optional arg test! Optional ver: str optional1  int 25
Optional arg test! Required ver: str required2  int 17
Optional arg test! Required ver: str maybeBroken  int: 0 doubleCheck: 0, evenMore: 0        (doubleCheck should be 69)
Optional arg test! Required ver: str idk Anymore  int: -5 doubleCheck: -8, evenMore: 0       (correct)
Optional arg test! Required ver: str maybeJustFirst?  int: 69 doubleCheck: 0, evenMore: 0    (correct)
Optional arg test! Required ver: str even MORE testing  int: 8 doubleCheck: 0, evenMore: 0    (evenMore is missing)

Expected behavior:

Optional arg test! START
Optional arg test! Optional ver: str optional1  int 25
Optional arg test! Required ver: str required2  int 17
Optional arg test! Required ver: str maybeBroken  int: 0 doubleCheck: 69, evenMore: 0
Optional arg test! Required ver: str idk Anymore  int: -5 doubleCheck: -8, evenMore: 0
Optional arg test! Required ver: str maybeJustFirst?  int: 69 doubleCheck: 0, evenMore: 0
Optional arg test! Required ver: str even MORE testing  int: 8 doubleCheck: 0, evenMore: 8.4

Additional Information: Environment: Script was placed on an empty object in the root of the hierarchy.

Package Versions: (Latest as of making bug report) VRC SDK - Worlds: 3.7.1 VRC Package resolver tool: 0.1.29 VRC SKD - Base: 3.7.1