Hi folks This was reported 10 years ago: https://lists.nongnu.org/archive/html/bug-lilypond/2014-02/msg00326.html
Now the string numbers have been removed, but there's still a sentence to be removed:
"String numbers are necessary for TabStaff because automatic string calculations are different for chords and for single notes."
The snippet is not using string numbers, so saying that they are necessary doesn't make sense.
Can anybody fix the snippet in the LSR? Thanks Federico