Comment # 1 on bug 1219376 from Dr. Werner Fink

From https://github.com/latex3/latex2e/pull/1063

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READ ME FIRST: Please understand that in most cases we will not be able to
merge a pull request because there are a lot of internal activities needed when
updating the LaTeX2e sources. If you have a code suggestion please discuss it
with the team first.
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Next is that dtx files requires some more work to get a patch for the source
code ... I'll investigate that further