Extra bar-lines appear when cadenzas are mixed with time signatures

[Mike Solomon]

It's not the most minimal example in the world, but it's tiny and it shows the 
problem (check out the "comment me out" line).

\version "2.14.0"

GRanITzMaLSxcacU= << {
  fis'32\mp gis'
  dis'8-. r r16
} {
  \time 3/8 %%%% <<<---- comment me out to get correct barring
  \cadenzaOn s16 \cadenzaOff \bar "|"
\cadenzaOn s4 s16 \cadenzaOff \bar "||"  } >>

TdpYNxtirUOVibVt= { r16 r4 r16 }

OxBjnhQOZwhBpbQE = {
  \cadenzaOn
  \clef bass <c g>4 \bar "" r4 \bar "" c4 \bar "" r4 \bar ""
  \cadenzaOff \bar "||"
}

TKiexwzyUvjbudor= {
  \clef treble
  <c' e' fis' g'>4\f  \bar "" r4 \bar "" <c' e'>4 \bar "" r4 \bar ""
}

AKDuHtxFBYMezRQt = { \cadenzaOn r1^\fermata \cadenzaOff \bar "||" }
RPISnCyCoOebQeFe = { r1^\fermata }

\new PianoStaff <<
 \new Staff = "up" {
\clef treble
\GRanITzMaLSxcacU
\TKiexwzyUvjbudor
\AKDuHtxFBYMezRQt
}
 \new Staff = "down" { \clef bass
\TdpYNxtirUOVibVt
\OxBjnhQOZwhBpbQE
\RPISnCyCoOebQeFe
\bar "|."}