Error when including a glossary

[gallandarakhneorg]

When including a glossary in the style for PhD thesis, the following error is output:

LaTeX Error: \begin{description} on input line 2 ended by \end{theglossary}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...

l.202 \end{theglossary}
                     \glossarypostamble

The PhD document includes the following macros:

...
\usepackage{glossaries}
\makeglossaries
...
\begin{document}
...
\newglossaryentry{explaining}{name={explaining}, description={Explaining something}}
...
\gls{explaining}
...
\printglossaries
...

[gallandarakhneorg]

The problem is due to the overriding of the 'description' environment by tex-upmethodology (see Issue 36).

The UPM packages must be fixed.