no-ledgers not working with NoteHead.before-line-breaking

[Paul Morris]

Any ideas why this doesn’t work?  Thanks, -Paul

\version “2.19.35"

% works:
{
  \override NoteHead.no-ledgers = ##t
  c c c c
}

% nope:
{
  \override NoteHead.before-line-breaking = 
  #(lambda (grob) (ly:grob-set-property! grob 'no-ledgers #t))
  c c c c
}