Beams over rests and concaveness

[Gilberto Agostinho]

Hi everyone,

It seems that the beam concaveness value is ignored when beaming over rests,
in the case of a single note with a single rest. This happens with and
without stemlet. See the code and score below, the groups marked with an
asterisk should have been flat (+inf.0 concaveness): 

\version "2.19.82"
{
  \time 12/8
  g8[ g'8]
  \once \override Beam.concaveness = #+inf.0
  g8[ g'8]
  
  g8[ r8]
  \once \override Beam.concaveness = #+inf.0
  g8[ r8]^"*"
  
  \override Stem.stemlet-length = #1
  g8[ r8]
  \once \override Beam.concaveness = #+inf.0
  g8[ r8]^"*"
  
  g8[ g'16 g''16]
  \once \override Beam.concaveness = #+inf.0
  g8[ g'16 g''16]
  
  g8[ r16 g''16]
  \once \override Beam.concaveness = #+inf.0
  g8[ r16 g''16]
  
  \override Stem.stemlet-length = #1
  g8[ r16 g''16]
  \once \override Beam.concaveness = #+inf.0
  g8[ r16 g''16]
}

<http://lilypond.1069038.n5.nabble.com/file/t4165/beam.png> 

Does anyone know a solution for this?

Many thanks,
Gilberto



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