pandoc-3.10: test/command/7278.md

```
% pandoc -t beamer
# Slide

Some blocks:

## example block title {.example}

text in block

## alert block title {.alert}

text in block

## block title

text in block
^D
\begin{frame}{Slide}
\protect\phantomsection\label{slide}
Some blocks:

\begin{exampleblock}{example block title}
\protect\phantomsection\label{example-block-title}
text in block
\end{exampleblock}

\begin{alertblock}{alert block title}
\protect\phantomsection\label{alert-block-title}
text in block
\end{alertblock}

\begin{block}{block title}
\protect\phantomsection\label{block-title}
text in block
\end{block}
\end{frame}
```