Issue 1274 in lilypond: #'dash-period = #-1 for LyricHyphen does not work

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Critical Regression

New issue 1274 by brownian.box: #'dash-period = #-1 for LyricHyphen does  
not work
http://code.google.com/p/lilypond/issues/detail?id=1274

\version "2.13.34"  % works in 2.12.3

\relative c'' {
  c1 c
}
\addlyrics {
  la -- la
}

\layout {
  \context {
    \Lyrics
    \override LyricHyphen #'dash-period = #-1
  }
}

\paper {
  ragged-right = ##f
}

Attachments:
        test--2.13.34.png  1.4 KB
        test--2.12.3.png  1.3 KB