autobeam in 3/4 with rests

[Toine Schreurs]

In 3/4, the default autobeam setting combines 6 eighth notes 
under one beam. But if some of the notes are replaced by eighth rests,
the result can be confusing. 
By clearing beamExceptions, this can be solved, but now the 6 notes
are not beamed together anymore.

Is there any way to change the default behaviour if eighth rests are
involved?

\version "2.13.61"
music = \relative c' {
  f8 f f f f f |
  r f f r f f |
}

\score {
  \new Staff {
    \time 3/4
    \music
    \set Timing.beamExceptions = #'()
    \music
  }
}

Toine Schreurs