Possible bug with volta repeat

[Peter Gentry]

The issue is when grace notes etc are added to a firsttime bar in one (or more) 
choir staves

\version "2.18.0"

\score {


   \new ChoirStaff 
 <<
     \new Staff = CStave 
      <<
      \new Voice = "C3" {  
         << 
           \relative c'' {
          \repeat volta 2 {         
           g1
            }
         \alternative {
           {e4   r4  gis,4 r4   } 
           {e'1  }
             }
             }  >> }
      >>

     \new Staff = DStave 
      <<
      \new Voice = "C4" {  
         <<  \relative c'' {
               \repeat volta 2 {
                    r1    
              }
            \alternative {
             {\acciaccatura {  cis,8 (  [  d8 e8 ]  }  fis4 )  r4  e4 r4  }
            { fis1 }
             }
                 }  >>  }
     >>  
 >>
}  % end score block

A warning message is sent and two indication of a first time bar are included 
in the first time bar. A workaround is to put the
grace notes in the preceeding bar. The issue only occurs with choir staves.

I haven't found this in the list of bugs afetr a search.

regards
Peter Gentry

test_C.png
Description: PNG image