mistake in german user manual "Benutzerhandbuch"

[Trommel]

In the german user manual (I assume in other languages too), the following
seems incorrect to me:
chapter 1.4.1 Lange wiederholungen
"Eine einfache Wiederholung mit einer Alternative:

    \repeat volta 2 { c4 d e f | }
    \alternative {
      { c2 e | }
      { f2 g | }
    }
    c1

    [image of music]"
In the image it shows the c1 as the last note. However, if this code is
copied into Lilypond, an error is reported, and no c1 is engraved at all. I
had to change the code to:
" Eine einfache Wiederholung mit einer Alternative:

    \repeat volta 2 { c4 d e f | }
    \alternative {
      { c2 e | }
      { f2 g | 
      c1}
    }

    [image of music]"

in order to get the result shown in the picture. As a beginner, it took
quite some time to figure that out...