Issue 1376 in lilypond: Ambitus engraver progerror when a same pitch has different accidentals

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium Warning

New issue 1376 by v.villenave: Ambitus engraver progerror when a same pitch  
has different accidentals
http://code.google.com/p/lilypond/issues/detail?id=1376

% The following example compiles fine, but produces a programming error:
% infinity or NaN encountered while converting Real number

\version "2.13.38"

\new Voice \with {
  \consists "Ambitus_engraver"
} {
  cis' c'
  % uncommenting this note fixes the problem:
  % d
}