documentclass[
handout
]{beamer}

begin{document}
begin{frame}<1>[label=foo]
  begin{itemize}[<+->]
  item One
  item Two
  end{itemize}
end{frame}

frame{Aside}

againframe{foo}
end{document}

documentclass[handout]{beamer}
begin{document}
begin{frame}<beamer:1>[label=foo]
  begin{itemize}[<beamer:+->]
  item One
  item Two
  end{itemize}
end{frame}
frame{Aside}
againframe{foo}
end{document}

documentclass[handout]{beamer}
begin{document}
begin{frame}<handout:1>[label=foo]
  begin{itemize}[<all:+->]
  item One
  item Two
  end{itemize}
end{frame}
frame{Aside}
againframe<all:2>{foo}
end{document}