Vertical spacing is broken when \change Staff and \showStaffSwitch on \pageBreak

[Zbyněk Burget via bug-lilypond]

Hi,
here is example of this bug:

\version "2.24.3"

\score {
  <<
    \new StaffGroup
    <<
      \new Staff \relative c''{ \clef treble c1 | \pageBreak c1 }
      \new Staff \relative c'{ \clef treble c1 | c1 }
    >>
    \new StaffGroup
    <<
      \new Staff \relative c'' { \clef treble c1 | c1 }
      \new Staff \relative c' { \clef treble c1 | c1 }
      \new Staff \relative c' { \clef treble c1 | c1 }
      \new Staff \relative c' { \clef alto c1 | c1 }
      \new Staff \relative c' { \clef alto c1 | c1 }
      \new Staff \relative c { \clef bass c1 | c1 }
    >>
    \new StaffGroup
    <<
      \new Staff \relative c'' { \clef treble c1 | c1 }
      \new Staff \relative c' { \clef treble c1 | c1 }
      \new Staff \relative c' { \clef treble c1 | c1 }
      \new Staff \relative c' { \clef alto c1 | c1 }
      \new Staff \relative c' { \clef alto c1 | c1 }
      \new Staff \relative c { \clef bass c1 | c1 }
    >>
    \new PianoStaff
    <<
      \new Staff = "1" <<
        \new Voice \relative c'' { \voiceOne \clef treble c1 | c1 }
        \new Voice\relative e' { \voiceTwo e1 | e1 }
      >> \new Staff = "2" <<
        \new Voice \relative c' { \voiceOne \clef bass c1 | \showStaffSwitch \change 
Staff = "1" c1 }
        \new Voice \relative c { \voiceTwo c1 | c1}
      >>
    >>

  >>
}



The problem occurs only if the \showStaffSwitch command is found.



--
Zbyněk Burget
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