lyrics in repeats

[fiëé visuëlle]

I assume this was discussed earlier, but I can't find it in the  
archives, sorry:

The following example from
http://www.lilypond.org/doc/v2.8/Documentation/user/lilypond/More- 
stanzas.html
shows what I'd like to get and also what's wrong:

\score{ <<
        \new Voice = "melody" \relative c' {
                c2 e | g e | c1 |
                \new Voice = "verse" \repeat volta 2 { c4 d e f | g1 | }
                a2 b | c1
        }
        \new Lyrics = "mainlyrics" \lyricsto melody \lyricmode {
                do mi sol mi do
                la si do
        }
        \new Lyrics = "mainlyrics" \lyricsto verse \lyricmode {
                do re mi fa sol
        }
        \new Lyrics = "repeatlyrics" \lyricsto verse \lyricmode {
                dodo rere mimi fafa solsol
        }
>> }

The lyrics of the repeated part don't start in the first lyrics line,  
but below.
How do I get the first line of "mainlyrics" always on the same line?


Greetlings from Lake Constance
---
fiëé visuëlle
Henning Hraban Ramm
http://www.fiee.net
http://angerweit.tikon.ch/lieder/
http://www.cacert.org (I'm an assurer)