Start sections on odd pages Article Class + Write "this page intentionally left blank"

Question

The following code is from (https://tex.stackexchange.com/a/443455/201720) and it works perfectly for making sure that new sections start on odd page numbers.

\documentclass[a4paper,10pt,twoside]{article}
\usepackage{blindtext}
\usepackage{etoolbox}
\pretocmd{\section}{\cleardoublepage}{}{}
\begin{document}
\section{One}
\blindtext
\section{two}
\blindtext
\end{document}

How can I edit this code to also have the blank pages say "This page intentionally left blank" in the center?

I have seen various solutions, but none of them seem to be for the article class.

Answer 1

I have borrowed \cleartooddpage from the memoir class which clears to the next odd page and can also put something on the skipped page.

% articleclearprob.tex  SE 566319
\documentclass[a4paper,10pt,twoside]{article}
\usepackage{blindtext}
\usepackage{etoolbox}

\makeatletter
% \cleartooddpage is from the memoir class
\newcommand{\cleartooddpage}[1][\@empty]{%
  \clearpage%
  \ifodd\c@page\else\hbox{}#1\clearpage\fi}
\makeatother
%  macro to clear to odd page and put a specific text at the centre of a skipped page
\newcommand{\leftblank}{%
  \cleartooddpage[\vspace*{\fill}\hfill This page intentionally left blank\hfill\vspace*{\fill}]}

%\pretocmd{\section}{\cleardoublepage}{}{}
\pretocmd{\section}{\leftblank}{}{}

\begin{document}
\section{One}
\blindtext
\section{two}
\blindtext
\end{document}