Whole notes tremolo, again....

[Valentin Villenave]

%{
This was previously a comment to issue 318:
http://code.google.com/p/lilypond/issues/detail?id=318#c3

Here's a minimal example that clearly demonstrates the bug:
in the following snippet the tremolo should be printed below the whole
notes, instead of above (thus colliding with the first voice).

It's obviously related to 318, 376 or 523 but looks like something
slightly different though.
%}


\relative {
  << { r4 f'2. } \\
  {    \stemDown
    \repeat tremolo 16 {d,32 a'32 }  }
    >>
}