several packages are specified twice

[davidcarlisle]

Description

several packages are specified twice with \RequirePackage

https://tex.stackexchange.com/q/660627/1090

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• [X] Relevant for LuaTeX
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\RequirePackage{xparse,l3keys2e}
\RequirePackage{fontspec}
\RequirePackage{fix-cm}
\RequirePackage{amsmath}
\RequirePackage{lualatex-math}
\cs_set_protected:Npn \__um_after_package:nNn #1 #2 #3
  {
    \AtBeginDocument
      {
        \cs_new_protected:Npn #2 {#3}
        \@ifpackageloaded {#1} {#2} {}
      }
  }
\RequirePackage{xparse,l3keys2e}
\RequirePackage{fontspec}
\RequirePackage{fix-cm}
\RequirePackage{lualatex-math}