Load package after other package with \AfterPackage

Question

I want to group packages together (in the real document, I load many more packages) and want to solve the sorting of the packages with commands like \AfterPackage from KOMA-Script.

I am using this solution to load the package cleveref after the package hyperref:

\documentclass{scrbook}
\usepackage{varioref} % before cleveref
\AfterPackage{hyperref}{\usepackage{cleveref}}
\usepackage{hyperref}

\begin{document}
\tableofcontents\chapter{test}
\subsection{variable references using vref}
\label{sec:references:vref}
\newpage
Some text which contains a vref reference
to section \vref{sec:references:vref}.
\end{document}

However the reference is never found. If I load cleveref instead hard coded after hyperref

\usepackage{varioref} % before cleveref
%\AfterPackage{hyperref}{\usepackage{cleveref}}
\usepackage{hyperref}
\usepackage{cleveref}

everything works as expected.

Why is \AfterPackage not doing what I expect it to do?

Answer 1

hyperref does seem to use some \AtEndOfPackage trickery. The normal version of \AfterPackage loads cleveref after hyperref, but before the trickery mentioned above. To ensure that cleveref is only loaded after hyperref has finished its business, use the "exclamation version" \AfterPackage!{hyperref}{\usepackage{cleveref}}.

\documentclass{scrbook}
\usepackage{varioref} % before cleveref
\AfterPackage!{hyperref}{\usepackage{cleveref}}
\usepackage{hyperref}

\begin{document}
\tableofcontents\chapter{test}
\subsection{variable references using vref}
\label{sec:references:vref}
\newpage
Some text which contains a vref reference
to \vref{sec:references:vref}.
\end{document}

EDIT: Both \AfterPackage!{hyperref}{\usepackage{cleveref}} and \AfterAtEndOfPackage{hyperref}{\usepackage{cleveref}} actually don't work if you issue them after \usepackage{hyperref}. My personal cleveref solution which is independend of its positioning in the preamble is

\usepackage{etoolbox}
\AtEndPreamble{\usepackage{cleveref}}

Answer 2

It can be solved using a different command: \AfterAtEndOfPackage. Somehow the \AfterPackage variant executes the code in the context of the package which is not what I wanted. This is described in the release notes of koma script: http://www.komascript.de/release3.09 (however in german).