midi lyrics broken after slur

[Erik Sandberg]

hi,

It seems that any syllables after a slurred syllable are not output to midi.

\version "2.1.33"
\score {
<<
  \context Voice=A \notes {a16( a) b c d e f }
  \lyricsto A \context Lyrics \lyrics { a b c d e f }
>>
  \paper {}
  \midi {\tempo 4=100}
}

output: a midi file with an 'a' as its only lyric.

Erik