how to terminate pedal bracket on full-measure rest

[Kieren Richard MacMillan]

Hello, all --

I can't seem to terminate a pedal bracket on a full-measure rest.  
I've tried a bunch of things (the version below uses a voiceII  
skipped note, but doesn't work).

Any thoughts? [n.b., I can't use old-style pedal markings in this  
case...]

Thanks,
Kieren.

p.s. I also note that the octavation bracket does not recognize  
\laissezVibrer ties!  =)
________________

\version "2.8.1"
\include "english.ly"

tieWait = { \set tieWaitForNote = ##t }
tieOrd = { \set tieWaitForNote = ##f }
lv = \laissezVibrer
octU = #(set-octavation 1)

pfNotesUpper = \relative c''
{
        \clef treble
        \time 12/8
        r4. r8 \octU \tieWait e'~ gs,~ <e' gs, b'>2.\lv \tieOrd
        R8*12
}
pfNotesLower = \relative c'
{
        \clef treble
        \set Staff.pedalSustainStyle = #'bracket
	\tieWait r8 cs~\sustainDown a'~ \stemUp b~ \stemNeutral s s <cs, a'  
b>2.\lv \tieOrd
        << R8*12 \\ { s8 \sustainUp } >>
}

<<
        \new Staff \pfNotesUpper
        \new Staff \pfNotesLower
>>