Cannot create jagged arrays from a generic method type

[nobu-sh]

Describe the bug in detail: When attempting to create a jagged array from a method generic it will initialize a single dimensional array containing the types provided through the generic. Attempting to then assign another array within the root array will result in an error.

EG: T[][] temp = new T[3][]; will actually just create T[] not T[][]

Provide steps/code to reproduce the bug:

ArrayHelper.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public static class ArrayHelper
{
    public static void JaggedArray<T>(ref T[][] jag, int rows, int cols) {
        jag = new T[rows][];
        for (int i = 0; i < rows; i++) {
            jag[i] = new T[cols];
        }
    }
}

UdonScript.cs

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

public class UdonScript : UdonSharpBehaviour
{
    private int[][] grid;

    void Start() {
        ArrayHelper.JaggedArray(ref grid, 7, 11);
    }
}

We can verify that this is generating the outcome described above by replacing jag[i] = new T[cols]; with Debug.Log(jag.GetType()); and see the outcome is System.Int32[]

Expected behavior: The expected result in the provided steps to reproduce is ArrayHelper.JaggedArray method would initialize all the secondary arrays in the passed ref. And jag = new T[rows][]; would initialize a jagged array, not a 1d array.

Extra Details; This has only been tested and verified with the Client Simulator for unity bundled with creator companion. I have not yet built/tested in VRChat.