pandoc-3.10: test/command/6043.md
```
% pandoc -t beamer
\textbf<1>{Bold Text On Slide1}
^D
\begin{frame}
\textbf<1>{Bold Text On Slide1}
\end{frame}
```
```
% pandoc -t beamer
\textbf<1>{Bold Text On Slide1}
^D
\begin{frame}
\textbf<1>{Bold Text On Slide1}
\end{frame}
```