Glossary per chapter for unnumbered chapters

Question

I have a document that consists of sub-documents which are organized as chapters. These chapters have no numbers because the chapter titles are the titles of the sub-documents. Each chapter has its own pagenumbering, toc, etc. I want to include one glossary per chapter that contains all acronyms used in this chapter and only those used.

Using the method that I found here, this should be possible. Unfortunately this seems to work only for numbered chapters as this number (\thechapter) is used in the style definition (as far as I understand the code). Is there a way to use a hidden chapter number or ID for referencing the glossary entries?

Many thanks in advance

Chris

\documentclass[a4paper, oneside, numbers=noenddot]{scrbook}
\usepackage{datatool-base}
\usepackage[counter=chapter,xindy,section=section]{glossaries}
\GlsSetXdyMinRangeLength{0}
\makeglossaries
\newglossaryentry{E}{name={\ensuremath{E}},description={energy}}
\newglossaryentry{m}{name={\ensuremath{m}},description={mass}}
\newglossaryentry{c}{name={\ensuremath{c}},description={speed of light}}
\newglossaryentry{v}{name={\ensuremath{v}},description=velocity}
\newglossarystyle{mystyle}%
{%
    \setglossarystyle{list}%
    \renewcommand{\glossaryentrynumbers}[1]{\striprelax##1\endstriprelax}%
    \renewcommand{\glsXchapterXglsnumberformat}[2]{##2}%
    \renewcommand{\delimR}{,}%
    \renewcommand{\glossentry}[2]{%
        \edef\doifinlocation{\noexpand\ifinlocation{\thechapter}{##2}}%
        \doifinlocation
        {%
            \item \glossentryname{##1} \glossentrydesc{##1}%
        }%
    }%
}
\newcommand{\ifinlocation}[3]{%
    \DTLifinlist{#1}{#2}{#3}{}%
}
\def\striprelax\relax#1\endstriprelax{#1}
\setglossarystyle{mystyle}
\begin{document}
    \chapter*{Sample Chapter}
    \printglossary
    \begin{equation}
        \gls{E} = \gls{m}\cdot \gls{c}^2
    \end{equation}
\glsresetall 
\chapter*{Another Chapter}
\printglossary
\begin{equation}
    \gls{E} = \frac{\gls{m}\gls{v}^2}{2}
\end{equation}

\end{document}