RE: Extra bracket in score in Lilypond 2.7.18

[liang seng]

Hi, I thought I should give visual examples of the problem I had encountered. The source file is "score.ly" and its contents are exactly the same as what I had typed earlier in the thread. The file "scorea.pdf" was generated by Lilypond 2.7.17 for Windows (98 and XP). This is the score layout, bracketing and spanbar layout that I intended. Note that there is only one line of brackets at the beginning of the system. However, the file "scoreb.pdf" generated by Lilypond 2.7.18 for Windows (98 and XP) shows the extra bracket encompassing the start of the 3rd to the 5th staff (from the top). As written in the source file, I had set \remove "System_start_delimiter_engraver" to remove the extra bracket in the first place which works in 2.7.17 but does not in 2.7.18. Is this a possible bug? Since I'm not sure if it is I did not post this to the bug mailing list.

Please help.
Thank you.


\version "2.7.17"
\layout {
 \context {
   \Score
   \accepts "OrchestraStaffGroup"
 }
 \context {
   \StaffGroup
   \name OrchestraStaffGroup
   \remove "Span_bar_engraver"
   \accepts "InstrumentStaffGroup"
 }
 \context {
   \StaffGroup
   \name InstrumentStaffGroup
   \remove "System_start_delimiter_engraver"
 }
} \score {
<< \relative
\new StaffGroup <<
\new Staff << {  R1 } >>
\new Staff << {  R1 } >> >>
\new OrchestraStaffGroup <<
 \new InstrumentStaffGroup <<
      \new GrandStaff <<
     \new Staff { R1 }
     \new Staff { R1}
   >>
  \new Staff << { R1  } >> >>
\new InstrumentStaffGroup <<
   \new Staff <<
     \context Voice = melody { c'1 }
     \lyricsto melody \new Lyrics { do }
   >>
 >>
 \new InstrumentStaffGroup <<
   \new Staff { \clef bass R1 }
   >> >> >> }

scorea.pdf
Description: Adobe PDF document

scoreb.pdf

Description: Adobe PDF document
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