Ticking charts in JS API are broken

[niloc132]

Description

After the JS refactor, at least some ticking tables produce errors when displayed in charts.

This is a regression caused by #5890.

Steps to reproduce

1. Create a ticking table with inserts as well as appends, e.g.

   from deephaven import time_table
   t = time_table("PT0.01s").update(["I=i", "J=I % 7841", "K = I % 7853", "L = J * K", "M = Math.sin(L)"]).sort("M")

2. Using the chart builder, create a chart from this table
   Expected results

A chart should appear that gets new rows added to it

Actual results

The chart does not have updates, and there are errors in the browser console, such as

User callback ( 
function lambda() ) of type  updated  failed:  
Object { stackTrace: (39) […], detailMessage: "Index: 66, Size: 66", backingJsObject: Error, suppressedExceptions: [] }