Incompatibility of zref-perpage and amsmath

Question

If amsmath is loaded after zref-perpage, zref-perpage will not reset counters in each page. What should be done to fix this except changing the loading order:

\documentclass{article}
\usepackage{zref-perpage}
\zmakeperpage{footnote}
\usepackage{amsmath}
\begin{document}
This is a test \footnote{test}
\newpage
This is another test \footnote{test}
\end{document}

Answer 1

Both packages zref-perpage and amstext (loaded by package amsmath) redefine \stepcounter to add some code. Package zref-perpage keeps the \stepcounter it finds, but amstext overwrites \stepcounter deleting the additions of zref-perpage.

Thus loading zref-perpage after amstext/amsmath is the correct workaround.

In the next version of zref the module zref-perpage will check for amstext and its redefinition of \stepcounter and will fix it.