Beams not connecting

[Hans Aberg]

% Beams at 6/16 (resp. 24/16) do not connect to 7/16 (resp. 25/16).
% Worked correctly in LilyPond 2.7.3
\version "2.11.15"
  barlines = { \repeat unfold 1 {s16*7 \bar ":" s16*7 \bar ":"  
s16*11 | } }
\score {
\new Staff <<
  \barlines
  \relative {
    \tempo 4 = 144
    \key e \minor
    \time 25/16
    #(override-auto-beam-setting '(end * * 25 16)  3 16)
    #(override-auto-beam-setting '(end * * 25 16)  7 16)
    #(override-auto-beam-setting '(end * * 25 16) 10 16)
    #(override-auto-beam-setting '(end * * 25 16) 14 16)
    #(override-auto-beam-setting '(end * * 25 16) 18 16)
    #(override-auto-beam-setting '(end * * 25 16) 21 16)
      g'16( fis g)  a8\prall a16( d,)   g16( fis g)  a8\prall a16( d,)
        fis16( g a b)  c( b d)  c8\prall c16( b) |
  }
>>
}