lyrics: keep unterminated hyphen on dal segno?

[Corinna Maass]

Hi,
I am typesetting a vocal piece with a dal segno al fine part, where the typeset 
music ends in the middle of a coloratura syllable before looping back to the 
first segno.
This means the lyrics line ends with a dangling hyphen, which lilypond removes 
automatically.
Is there a workaround to restore the hyphen?

Thanks,
Corinna

Example:

\version "2.14.2"
voice = \relative c'' {
  \key c \major
  \time 4/4
 r2 r4 g \mark \markup { \musicglyph #"scripts.segno" }  g8 g g g g4 g g2 g4 g 
g2\fermata 
 r4 g g2 g4 g g g r4 g,32\melisma a b c d e f g\melismaEnd \mark \markup { 
\musicglyph #"scripts.segno" }
}

verse = \lyricmode {
  Un -- ter -- mi -- na -- ted hy -- phens should be re -- moved; 
  Ex -- cept for dal seg -- nos! Un --
}

\score {
  \new Staff  { \voice }
  \addlyrics { \verse }
  \layout { }
  
}