unwanted beam subdividing

[Werner LEMBERG]

In this sample I explicitly disable beam subdividing (which should be
off anyway by default).

  \relative c' {
    \set subdivideBeams = ##f
    \times 2/3 { f16[ g f g f8] }
  }

  \paper {
    ragged-right = ##t
  }

However, the beam gets subdivided.  I want to have this:

       3
   ---------
   ------- |
   | | | | |
   | | | | |


How can I achieve this?  I dare to say that I've checked the manual
thoroughly and I haven't found more information.  A bug?


    Werner