Can't do cross references with subfileinclude and subfolders

[tobiasBora]

Hello,

First, thanks for this package.

It seems impossible to do cross references when these two conditions are respected at the same time:

• Using \subfileinclude instead of \subfile
• Putting our chapters in a subfolder

If I do so, the references are not found and replaced with ???. If I use \subfile or if I put all files in the same folder, then everything works as expected.

MWE:

main.tex:

\documentclass[a4paper,12pt]{memoir}

\usepackage{xr-hyper} %% Allow cross references between files in subfiles
\usepackage{subfiles}
\externaldocument{\subfix{main}}

\usepackage{hyperref}

\begin{document}

%% Works
\subfile{chapters/chapter_1.tex}
\subfile{chapters/chapter_2.tex}

%% Does not work
%\subfileinclude{chapters/chapter_1.tex}
%\subfileinclude{chapters/chapter_2.tex}

\end{document}

chapters/chapter_1.tex:

\documentclass[../main]{subfiles}
\begin{document}
\chapter{My Chapter}

\section{Hello}\label{sec:hello}
Say Hi!

\end{document}

chapters/chapter_2.tex:

\documentclass[../main]{subfiles}
\begin{document}
\section{Boou}\label{sec:bou}

Hello \ref{sec:hello}

\end{document}