Why doesn't the build fail for anybody else, including the bots?

[David Kastrup]

commit a1a418468e5cf481340667d433676dc00adf00fb
Author: Jean Abou Samra <jean@abou-samra.fr>
Date:   Wed Sep 1 18:54:24 2021 +0200

    Markup commands for conditionals

has

+@ref{Conditionals}.

in its diff without defining it anywhere.  Consequently I get

dak@lola:/usr/local/tmp/lilypond$ CPU_COUNT=9 make -j9
Making Documentation/out/lilypond-notation.info < texi

Please check the logfile

  /usr/local/tmp/lilypond/Documentation/./out/notation.makeinfo.log

for errors. Last 20 lines:

[...]

out/en/en/notation/input.texi:1454: @ref reference to nonexistent node 
`Conditionals'
make[1]: *** [GNUmakefile:576: out/lilypond-notation.info] Error 1
make: *** [/usr/local/tmp/lilypond/stepmake/stepmake/generic-targets.make:6: 
all] Error 2


Why does nobody else get this?

-- 
David Kastrup