Merge_rests_engraver broken?

[Brent Annable]

Hi all,

Is the Merge_rests_engraver broken? I just copied and pasted the example from the Lilypond manual into Frescobaldi (Lilypond version 2.19.65), and the rests did not merge like they do on the relevant page of the manual:

voiceA = \relative { d''4 r d2 | R1 | }

voiceB = \relative { fis'4 r g2 | R1 | }

\score {

  <<

    \new Staff \with {

      instrumentName = "unmerged"

    }

    <<

      \new Voice { \voiceOne \voiceA }

      \new Voice { \voiceTwo \voiceB }

    >>

    \new Staff \with {

      instrumentName = "merged"

      \consists "Merge_rests_engraver"

    }

    <<

      \new Voice { \voiceOne \voiceA }

      \new Voice { \voiceTwo \voiceB }

    >>

  >>

}

Is there a workaround for this, or am I doing something wrong?

Brent.