Error resulting from hyperref-cleveref-ntheorem interaction: No counter '[' defined

[Stuart Little]

I am on a Linux system running [TeX Live 2023](https://www.tug.org/texlive/) installed manually (not through the distro's repo), and up to date at the time of this writing (2023-04-21). 

The following short document has started erroring after the most recent upgrade:

> \documentclass[11pt]{article}
> 
> \usepackage{mathtools}
> 
> \usepackage{hyperref}
> 
> \usepackage{ntheorem}
> \usepackage{cleveref}
> 
> \theoremstyle{plain}
> \newtheorem{lemma}{Lemma}[section]
> 
> \title{}
> 
> \begin{document}
> 
> \maketitle
> 
> \begin{lemma}
>   
> \end{lemma}
> 
> \end{document}
> 

Specifically, the error I receive is 

> ERROR: LaTeX Error: No counter '[' defined.

It goes away under any of the following circumstances:

1. I comment out `\usepackage{hyperref}`

2. I comment out `\usepackage{cleveref}`

3. I move `\usepackage{cleveref}` *above* `\usepackage{ntheorem}`

I would like to use all three packages, so that 1. and 2. aren't really fixes. As for 3., it too has drawbacks: if it loads before `ntheorem`, `cleveref` seems to lose track of environment types when cross-referencing: `\Cref{blah}` always produces `Lemma <blah>` even if `<blah>` was something else (theorem, proposition, definition, etc.). 

This is not happening on other systems I have access to (still Linux, still `TeX Live 2023`), which update their respective `TeX Live` distributions more rarely. I distinctly remember `hyperref` received a very recent upgrade that may have introduced this.