Issue 1645 in lilypond: Beam_collision_engraver sometimes fails on demisemiquavers or shorter notes

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Collision Priority-High

New issue 1645 by address@hidden: Beam_collision_engraver sometimes  
fails on demisemiquavers or shorter notes
http://code.google.com/p/lilypond/issues/detail?id=1645

Reported by Bertrand Bordage:

This isn't a regression. I suggest a medium or high prority.
Here is an example :

\version "2.15"
<<
  { a'32[ a' a' a'] }
  \\
  { c''[ d'' d'' d''] }