ottava & polyphony

[GoochRules!]

Greetings,

I am attempting to mix ottava brackets and polyphony.
I have to following fragment:

		<< { \skip 2. #(set-octavation 1) \acciaccatura cis' cis''4 
\acciaccatura fis fis'2 #(set-octavation 0) } \\ { < fis, cis, >2.~ < 
fis, cis, >2. } >>

I am finding that the lower (second) voice is being subjected to the 
ottava as well as the upper voice.  I only want the upper voice to be 
affected.  I have found no reference to this in the documentation (PDF 
for version 2.0.2).

Is this a bug in version 2.0.1?  Has it been fixed in a later version?


--Matthew Peltzer