Lyricsto skips notes with melisma's in 2.2 ?

[Michiel Lange]

The following is a snippet from a song I want to enter in Lilypond 
version 2.2.0
However the notes within << >> are skipped due to a melisma? (I think 
it's the melisma that gets me in trouble)

the "My" should fall on the << ges8 \melisma (f8) \melismaEnd \\ es4 >> 
but instead that part is skipped...
The snippet should be possible to run through lilypond if you need to 
see what happens...

Is there anyone who knows what's going wrong exactly and how this can be 
solved?

Thanks!
Michiel

--- snippet begin ---
\version "2.2.0"

muzieksopr = \notes
{
       <es aes>4 { <<{ges8 \melisma ( f8 ) \melismaEnd} \\ es4 >> } 
<ges es>4. <ges es>8 <des ges>4 <des f>8 <des es>8 <des f>4 des4 <c f>1~ 
<c f>1
}

muziekbas = \notes
{
       <ges ces,>4 <ges ces,>4 <ges ces,>4. <ges ces,>8 <ges bes,>4 
<ges bes,>8 <ges bes,>8 <f bes,>4 <f bes,>4 << {bes1~ \melisma ( bes2 a 
) \melismaEnd} \\ {c,1 \melisma ( f1 ) \melismaEnd} >>
}

tekst = \lyrics
{
       _seek _My _face _and _turn _from _their _wick -- ed _ways__
}

\score
{
       \notes
       \context PianoStaff <<
               \context Voice = melodie
               {
                       \relative c'
                       {
                               \set Staff.midiInstrument="violin"
                               \key bes \major \clef violin
                               \muzieksopr

                       }
               }
               \new Staff
               {
                       \relative c'
                       {
                               \set Staff.midiInstrument="violin"
                               \key bes \major \clef bass
                               \muziekbas
                       }
               }
               \lyricsto "melodie" \new Lyrics \lyrics
               {
                       \tekst
               }
       >>
       \midi { \tempo 4 = 80 }
       \paper {}
}
--- snippet end ---