ottava bug?

[Christopher Ellis]

Is this a bug?  Sorry is this is a repeat.

\version "2.2.0"
#(ly:set-point-and-click 'line-column)
#(set-default-paper-size "letter")
#(set-global-staff-size 18)

vlnI = \notes \relative c' {

  \clef violin
  \key e \major
  \time 2/2

  r16 g\ff a g c e g c e2 |
  \times 2/3 { fis8 g a } b4 r4 e8. fis16 |
  gis!2 b2-> ~ |
  b4 \times 2/3 { e,,8( fis b,) } gis'2\< ~ |
  gis8\! r8 r4 r2 |
  \times 2/3 { cis8(\ff b e, fis fisis gis dis e ais, cis b gis }  |
\break 
  
% 7

  e8) r8 r4 r4 <e b'>4 |
  r4 <e e'>8-> r8 r2 |
  gis'2.(\ff e8[) r16 gis16]->  |
  cis2. ais8.( e'16)  |
  e2 #(set-octavation 1) gis4. a8 |
  b2. b8.(\< cis16 |
  d8)\! r8 f,2(-> e8[) r16 fis16]->  |
  a2(-> gis4)  gis8.(\< a16 |
  b8)\! r8 #(set-octavation 0) b,2(-> d8[) r16  cis16]-> | \break
  
}

\score { 
  \vlnI
}