extender bug in Lyrics

[Werner LEMBERG]

The following input file extends the lyrics extension over the rest
which is wrong.  Using automaticPhrasing = ##t makes it work, but IMHO
this must work with ##f also.


    Werner

======================================================================

\score {
  \addlyrics
  \context Voice \notes \relative c'' {
    d1 ~ |
    d4 r d2 |
  }
  \context Lyrics \lyrics {
    foo __ bar
  }
  \paper {
    \translator {
      \ScoreContext
      automaticPhrasing = ##f
    }
    linewidth = -1
  }
}