[tex-live] l3keys2e class options ignored with TL 2015

[Denis Bitouzé]

Hi,

during compilation of the following MWE example:

--8<---------------cut here---------------start------------->8---
\begin{filecontents*}{myclass.cls}
\RequirePackage{l3keys2e}
\ExplSyntaxOn
\ProvidesExplClass
{myclass}
{2015/06/28}
{0.1}
{
  My~nice~class!
}
\NeedsTeXFormat{LaTeX2e}

\tl_new:N \g_key_tl
\keys_define:nn { myclass }
{
  key .tl_gset:N = \g_key_tl
}
\ProcessKeysOptions { myclass }
\LoadClassWithOptions { article }
\ExplSyntaxOff
\end{filecontents*}
%
\documentclass[key=foo]{myclass}
\begin{document}
\ExplSyntaxOn
\tl_show:N \g_key_tl
\ExplSyntaxOff
\end{document}
--8<---------------cut here---------------end--------------->8---

one has on TL:

1. 2014:
  ┌────
  │ (./test.aux)
  │ > \g_key_tl=macro:
  │ ->foo.
  │ <recently read> }
  │                  
  │ l.28 \tl_show:N \g_key_tl
  │                          
  │ ?
  └────
   which shows l3keys2e class option is taken into account (despite
   a LaTeX warning: "Unused global option(s): [key=foo]".)

2. 2015:
  ┌────
  │ (./test.aux)
  │ > \g_key_tl=macro:
  │ ->.
  │ <recently read> }
  │                  
  │ l.28 \tl_show:N \g_key_tl
  │                          
  │ ? 
  └────
   which shows l3keys2e class option is /not/ taken into account (with
   the same LaTeX warning: "Unused global option(s): [key=foo]".)

Here are the file lists, on:

1. 2014:
  ┌────
  │  *File List*
  │  myclass.cls    2015/06/28 v0.1 My nice class!
  │ l3keys2e.sty    2014/11/25 v5471 LaTeX2e option processing using LaTeX3 keys
  │    expl3.sty    2015/03/01 v5547 L3 programming layer (loader) 
  │ expl3-code.tex    2015/03/01 v5547 L3 programming layer 
  │     etex.sty    2015/03/02 v2.1 eTeX basic definition package (PEB,DPC)
  │ l3unicode-data.def    2015/03/01 v5544 L3 Unicode data
  │ l3pdfmode.def    2015/03/01 v5544 L3 Experimental driver: PDF mode
  │  article.cls    2014/09/29 v1.4h Standard LaTeX document class
  │   size10.clo    2014/09/29 v1.4h Standard LaTeX file (size option)
  │  ***********
  └────

2. 2015:
  ┌────
  │  *File List*
  │  myclass.cls    2015/06/28 v0.1 My nice class!
  │ l3keys2e.sty    2015/06/15 v5630 LaTeX2e option processing using LaTeX3 keys
  │    expl3.sty    2015/06/15 v5630 L3 programming layer (loader) 
  │ expl3-code.tex    2015/06/15 v5630 L3 programming layer 
  │ l3unicode-data.def    2015/03/01 v5544 L3 Unicode data
  │ l3pdfmode.def    2015/05/21 v5613 L3 Experimental driver: PDF mode
  │  article.cls    2014/09/29 v1.4h Standard LaTeX document class
  │   size10.clo    2014/09/29 v1.4h Standard LaTeX file (size option)
  │  ***********
  └────

Thanks in anticipation for any hint.
--
Denis