export to beamer: author and dynamic effects are not exported.

[Uwe Brauer]

Hi 

Consider please the following example 

#+TITLE: This title
#+AUTHOR: Uwe Brauer

* This is an example
:PROPERTIES:
:BEAMER_opt: <+->
:END:

Now

    1. This

    2. That 

It should be exported as

\author{Uwe Brauer}
and the dynamic effect as 

\begin{frame}[<+->][label={sec:orge797871}]{This is an example}

But it is not, instead 

\begin{frame}[label={sec:orgb41a8d4},<+->]{This is an example}

Which does not compile correctly

Moreover the author is ignored (there is pdfauthor however which
does not get compiled) and 



I attach the org file the resulting tex file and the corrected tex file

Regards

Uwe Brauer 



% Created 2020-12-14 lun 10:15
% Intended LaTeX compiler: pdflatex
\documentclass[presentation]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{textcomp}
\usepackage{amssymb}
\usepackage{capt-of}
\usepackage[numbered,framed]{matlab-prettifier}
\usetheme{default}
\date{\today}
\title{This title}
\hypersetup{
 pdfauthor={Uwe Brauer},
 pdftitle={This title},
 pdfkeywords={},
 pdfsubject={},
 pdfcreator={Emacs 28.0.50 (Org mode 9.3.7)}, 
 pdflang={English}}
\begin{document}

\maketitle

\begin{frame}[label={sec:orgb41a8d4},<+->]{This is an example}
Now

\begin{enumerate}
\item This

\item That
\end{enumerate}
\end{frame}
\end{document}
#+TITLE: This title
#+AUTHOR: Uwe Brauer

* This is an example
:PROPERTIES:
:BEAMER_opt: <+->
:END:

Now

    1. This

    2. That 

% Created 2020-12-14 lun 10:13
% Intended LaTeX compiler: pdflatex
\documentclass[presentation]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{textcomp}
\usepackage{amssymb}
\usepackage{capt-of}
\usepackage[numbered,framed]{matlab-prettifier}
\usetheme{default}
\date{\today}
\title{This title}
\author{Uwe Brauer }
\hypersetup{
 pdfauthor={Uwe Brauer},
 pdftitle={This title},
 pdfkeywords={},
 pdfsubject={},
 pdfcreator={Emacs 28.0.50 (Org mode 9.3.7)}, 
 pdflang={English}}
\begin{document}

\maketitle

\begin{frame}[<+->][label={sec:orge797871}]{This is an example}
Now

\begin{enumerate}
\item This

\item That
\end{enumerate}
\end{frame}
\end{document}