ntheorem package incompatible

[mbertucci47]

Not an exhaustive list:

• \newtheorem is overwritten and theorems are tagged like lists
• \listtheorems is not tagged as a TOC
• If hyperref is not loaded, the destination name appears in the \listtheorems.
• If hyperref is loaded, \listtheorems produces parent-child warnings.
• The thmmarks option redefines many important environments so breaks tagging.

\DocumentMetadata
  {
    lang=en-US,
    pdfversion=2.0,
    pdfstandard=ua-2,
    testphase={phase-III,title,math,table,firstaid}
  }
\documentclass{article}

\usepackage{amsmath}
\usepackage[
  amsmath,
  thref,
  hyperref, % parent-child warnings
  thmmarks % parent-child warnings; redefines a lot of envs
  ]{ntheorem}
\usepackage{hyperref} % see above

\title{ntheorem tagging test}

\newtheorem{theorem}{Theorem}

\theoremstyle{plain}
\theoremsymbol{\ensuremath{\clubsuit}}
\theoremseparator{.}
\theoremprework{\bigskip\hrule}
\theorempostwork{\hrule\bigskip}
\newtheorem{definition}{Definition}

\begin{document}

\listtheorems{theorem} % output is wrong

\begin{theorem}\label{thm}
Some text
\end{theorem}

\begin{theorem}[A heading]
Some more text
\end{theorem}

\ref{thm}

\thref{thm}

\begin{definition}
Some text
\end{definition}

\end{document}