Error in mode-latex getType

[kurtslagle]

When using mode-latex, a console error appears saying Cannot read properties of null (reading 'type'), coming from https://github.com/ajaxorg/ace-builds/blob/master/src-noconflict/mode-latex.js#L142

It seems like whenever there isn't any content after the cursor, typing \begin or \end to begin or end a new environment causes a console error to show up.

It's simple to reproduce in the kitchen sink: https://ajaxorg.github.io/ace-builds/kitchen-sink.html
Just set the mode to LaTeX and with this document content

\usepackage{amsmath}
\title{\LaTeX}
\date{}
<start typing here>

begin typing \begin{document}. Once you finish typing begin, the console error will show up.

This doesn't appear to happen if there is any text after where you would be typing \begin{..., like this

<start typing here>
some other stuff

typing \begin does not make the error appear.

[InspiredGuy]

This repository only contains generated files. I will transfer this issue to https://github.com/ajaxorg/ace, as it seems to be relevant to latex mode implementation.

[andrewnester]

Released in 1.16.0

[kurtslagle]

Thank you for fixing that so quickly!