pandoc-3.10.1: test/command/982.md

```
% pandoc -f latex -t native
\newcommand{\BEQ}{\begin{equation}}
\newcommand{\EEQ}{\end{equation}}

\BEQ
y=x^2
\EEQ
^D
[ Para
    [ Math
        DisplayMath "\\begin{equation}\ny=x^2\n\\end{equation}"
    ]
]
```